Merge pull request #2212 from rachel-fenichel/cleanup/remove_eslintrc

Remove old eslintrc and use .json for mocha eslintrc

.eslintrc

@@ -1,68 +0,0 @@
-{
-    "rules": {
-        "curly": ["error"],
-        "eol-last": ["error"],
-        "indent": [
-            "error", 2,  # Blockly/Google use 2-space indents
-            # Blockly/Google uses +4 space indents for line continuations.
-            {
-                "SwitchCase": 1,
-                "MemberExpression": 2,
-                "ObjectExpression": 1,
-                "FunctionDeclaration": {
-                    "body": 1,
-                    "parameters": 2
-                },
-                "FunctionExpression": {
-                    "body": 1,
-                    "parameters": 2
-                },
-                "CallExpression": {
-                    "arguments": 2
-                },
-                # Ignore default rules for ternary expressions.
-                "ignoredNodes": ["ConditionalExpression"]
-            }
-        ],
-        "keyword-spacing": ["error"],
-        "linebreak-style": ["error", "unix"],
-        "max-len": [
-            "error",
-            {
-                "code": 100,
-                "tabWidth": 4,
-                "ignoreStrings": true,
-                "ignoreRegExpLiterals": true
-            }
-        ],
-        "no-trailing-spaces": ["error", { "skipBlankLines": true }],
-        "no-unused-vars": [
-            "error",
-            {
-                "args": "after-used",
-                # Ignore vars starting with an underscore.
-                "varsIgnorePattern": "^_",
-                # Ignore arguments starting with an underscore.
-                "argsIgnorePattern": "^_"
-            }
-        ],
-        "no-use-before-define": ["error"],
-        "quotes": ["off"], # Blockly uses single quotes except for JSON blobs, which must use double quotes.
-        "semi": ["error", "always"],
-        "space-before-function-paren": ["error", "never"], # Blockly doesn't have space before function paren
-        "space-infix-ops": ["error"],
-        "strict": ["off"], # Blockly uses 'use strict' in files
-        "no-cond-assign": ["off"], # Blockly often uses cond-assignment in loops
-        "no-redeclare": ["off"], # Closure style allows redeclarations
-        "valid-jsdoc": ["error", {"requireReturn": false}],
-        "no-console": ["off"]
-    },
-    "env": {
-        "browser": true
-    },
-    "globals": {
-        "Blockly": true, # Blockly global
-        "goog": true # goog closure libraries/includes
-    },
-    "extends": "eslint:recommended"
-}