removed the no-undefined eslint rule from client and server

src/client/.eslintrc

@@ -219,7 +219,6 @@
 		"no-throw-literal": 2,
 		"no-undef": 1,
 		"no-undef-init": 2,
-		"no-undefined": 1,
 		"no-underscore-dangle": 1,
 		"no-unneeded-ternary": 2,
 		"no-unreachable": 1,

src/server/.eslintrc

@@ -132,7 +132,6 @@
     "no-shadow": [2,{"builtinGlobals":true,"hoist":"all"}],
     "no-undef-init": 2,
     "no-undef": 1,
-    "no-undefined": 1,
     "no-unused-vars": [1, {"args": "none"}],
     "no-use-before-define": 2,
     "no-mixed-requires": [2,false],