diff --git a/accessible/clipboard.service.js b/accessible/clipboard.service.js
index dc3853832..61510b94f 100644
--- a/accessible/clipboard.service.js
+++ b/accessible/clipboard.service.js
@@ -27,10 +27,6 @@ blocklyApp.ClipboardService = ng.core.Class({
       blocklyApp.NotificationsService, blocklyApp.UtilsService,
       blocklyApp.AudioService,
       function(_notificationsService, _utilsService, _audioService) {
-    this.clipboardBlockXml_ = null;
-    this.clipboardBlockPreviousConnection_ = null;
-    this.clipboardBlockNextConnection_ = null;
-    this.clipboardBlockOutputConnection_ = null;
     this.markedConnection_ = null;
     this.notificationsService = _notificationsService;
     this.utilsService = _utilsService;
@@ -44,15 +40,6 @@ blocklyApp.ClipboardService = ng.core.Class({
         Blockly.OPPOSITE_TYPE[blockConnection.type] == connection.type &&
         connection.checkType_(blockConnection));
   },
-  isCompatibleWithClipboard: function(connection) {
-    var previousConnection = this.clipboardBlockPreviousConnection_;
-    var nextConnection = this.clipboardBlockNextConnection_;
-    var outputConnection = this.clipboardBlockOutputConnection_;
-    return Boolean(
-        this.areConnectionsCompatible_(connection, previousConnection) ||
-        this.areConnectionsCompatible_(connection, nextConnection) ||
-        this.areConnectionsCompatible_(connection, outputConnection));
-  },
   getMarkedConnectionBlock: function() {
     if (!this.markedConnection_) {
       return null;
@@ -102,48 +89,6 @@ blocklyApp.ClipboardService = ng.core.Class({
     this.markedConnection_ = connection;
     this.notificationsService.speak(Blockly.Msg.ADDED_LINK_MSG);
   },
-  cut: function(block) {
-    this.copy(block);
-    block.dispose(true);
-  },
-  copy: function(block) {
-    this.clipboardBlockXml_ = Blockly.Xml.blockToDom(block);
-    Blockly.Xml.deleteNext(this.clipboardBlockXml_);
-    this.clipboardBlockPreviousConnection_ = block.previousConnection;
-    this.clipboardBlockNextConnection_ = block.nextConnection;
-    this.clipboardBlockOutputConnection_ = block.outputConnection;
-  },
-  isClipboardEmpty: function() {
-    return !this.clipboardBlockXml_;
-  },
-  pasteFromClipboard: function(inputConnection) {
-    var connection = inputConnection;
-    // If the connection is a 'previousConnection' and that connection is
-    // already joined to something, use the 'nextConnection' of the
-    // previous block instead in order to do an insertion.
-    if (inputConnection.type == Blockly.PREVIOUS_STATEMENT &&
-        inputConnection.isConnected()) {
-      connection = inputConnection.targetConnection;
-    }
-
-    var reconstitutedBlock = Blockly.Xml.domToBlock(blocklyApp.workspace,
-        this.clipboardBlockXml_);
-    switch (connection.type) {
-      case Blockly.NEXT_STATEMENT:
-        connection.connect(reconstitutedBlock.previousConnection);
-        break;
-      case Blockly.PREVIOUS_STATEMENT:
-        connection.connect(reconstitutedBlock.nextConnection);
-        break;
-      default:
-        connection.connect(reconstitutedBlock.outputConnection);
-    }
-    this.audioService.playConnectSound();
-    this.notificationsService.speak(
-        this.utilsService.getBlockDescription(reconstitutedBlock) + ' ' +
-        Blockly.Msg.PASTED_BLOCK_FROM_CLIPBOARD_MSG);
-    return reconstitutedBlock.id;
-  },
   pasteToMarkedConnection: function(block) {
     var xml = Blockly.Xml.blockToDom(block);
     var reconstitutedBlock = Blockly.Xml.domToBlock(
diff --git a/accessible/tree.service.js b/accessible/tree.service.js
index ae6b2aae2..d374d7e32 100644
--- a/accessible/tree.service.js
+++ b/accessible/tree.service.js
@@ -266,46 +266,6 @@ blocklyApp.TreeService = ng.core.Class({
           deleteBlockFunc, treeId, nextActiveDesc.id);
     }
   },
-  cutBlock_: function(block, blockRootNode) {
-    var blockDescription = this.utilsService.getBlockDescription(block);
-
-    var that = this;
-    this.removeBlockAndSetFocus(block, blockRootNode, function() {
-      that.clipboardService.cut(block);
-    });
-
-    setTimeout(function() {
-      if (that.utilsService.isWorkspaceEmpty()) {
-        that.notificationsService.speak(
-            blockDescription + ' cut. Workspace is empty.');
-      } else {
-        that.notificationsService.speak(
-            blockDescription + ' cut. Now on workspace.');
-      }
-    });
-  },
-  copyBlock_: function(block) {
-    var blockDescription = this.utilsService.getBlockDescription(block);
-    this.clipboardService.copy(block);
-    this.notificationsService.speak(
-        blockDescription + ' ' + Blockly.Msg.COPIED_BLOCK_MSG);
-  },
-  pasteToConnection: function(block, connection) {
-    if (this.clipboardService.isClipboardEmpty()) {
-      return;
-    }
-
-    var destinationTreeId = this.getTreeIdForBlock(
-        connection.getSourceBlock().id);
-    this.clearActiveDesc(destinationTreeId);
-
-    var newBlockId = this.clipboardService.pasteFromClipboard(connection);
-    // Invoke a digest cycle, so that the DOM settles.
-    var that = this;
-    setTimeout(function() {
-      that.focusOnBlock(newBlockId);
-    });
-  },
   showBlockOptionsModal: function(block, blockRootNode) {
     var that = this;
     var actionButtonsInfo = [];
@@ -430,28 +390,12 @@ blocklyApp.TreeService = ng.core.Class({
       return;
     }
 
-    if (e.altKey) {
+    if (e.altKey || e.ctrlKey) {
       // Do not intercept combinations such as Alt+Home.
       return;
     }
 
-    if (e.ctrlKey) {
-      var blockRootNode = this.getCurrentBlockRootNode_(activeDesc);
-      var block = this.getBlockFromRootNode_(blockRootNode);
-
-      if (e.keyCode == 88) {
-        // Cut block.
-        this.cutBlock_(block, blockRootNode);
-      } else if (e.keyCode == 67) {
-        // Copy block.
-        this.copyBlock_(block);
-      } else if (e.keyCode == 86) {
-        // Paste block, if possible.
-        var targetConnection =
-            e.shiftKey ? block.previousConnection : block.nextConnection;
-        this.pasteToConnection(block, targetConnection);
-      }
-    } else if (document.activeElement.tagName == 'INPUT') {
+    if (document.activeElement.tagName == 'INPUT') {
       // For input fields, only Esc and Tab keystrokes are handled specially.
       if (e.keyCode == 27 || e.keyCode == 9) {
         // For Esc and Tab keys, the focus is removed from the input field.
diff --git a/accessible/workspace-tree.component.js b/accessible/workspace-tree.component.js
index ff99a1a17..13ae7c6a7 100644
--- a/accessible/workspace-tree.component.js
+++ b/accessible/workspace-tree.component.js
@@ -198,8 +198,5 @@ blocklyApp.WorkspaceTreeComponent = ng.core.Component({
   generateAriaLabelledByAttr: function(mainLabel, secondLabel) {
     return this.utilsService.generateAriaLabelledByAttr(
         mainLabel, secondLabel);
-  },
-  isCompatibleWithClipboard: function(connection) {
-    return this.clipboardService.isCompatibleWithClipboard(connection);
   }
 });