remove legacy rules

Author: kazupon

.eslintrc

@@ -37,17 +37,12 @@
     "key-spacing": [2, { "beforeColon": false, "afterColon": true }],
     "linebreak-style": 0,
     "lines-around-comment": 0,
-    "max-depth": 0,
-    "max-len": 0,
     "max-nested-callbacks": 0,
-    "max-params": 0,
-    "max-statements": 0,
     "new-cap": [2, { "newIsCap": true, "capIsNew": false }],
     "new-parens": 2,
     "newline-after-var": 0,
     "no-alert": 0,
     "no-array-constructor": 2,
-    "no-bitwise": 0,
     "no-caller": 2,
     "no-catch-shadow": 0,
     "no-cond-assign": 2,
@@ -105,7 +100,6 @@
     "no-octal-escape": 2,
     "no-param-reassign": 0,
     "no-path-concat": 0,
-    "no-plusplus": 0,
     "no-process-env": 0,
     "no-process-exit": 0,
     "no-proto": 0,

test/.eslintrc

@@ -47,17 +47,12 @@
     "key-spacing": [2, { "beforeColon": false, "afterColon": true }],
     "linebreak-style": 0,
     "lines-around-comment": 0,
-    "max-depth": 0,
-    "max-len": 0,
     "max-nested-callbacks": 0,
-    "max-params": 0,
-    "max-statements": 0,
     "new-cap": [2, { "newIsCap": true, "capIsNew": false }],
     "new-parens": 2,
     "newline-after-var": 0,
     "no-alert": 0,
     "no-array-constructor": 2,
-    "no-bitwise": 0,
     "no-caller": 2,
     "no-catch-shadow": 0,
     "no-cond-assign": 2,
@@ -115,7 +110,6 @@
     "no-octal-escape": 2,
     "no-param-reassign": 0,
     "no-path-concat": 0,
-    "no-plusplus": 0,
     "no-process-env": 0,
     "no-process-exit": 0,
     "no-proto": 0,