Remove unused dependencies

package.json

@@ -77,17 +77,7 @@
     "gulp-ext-replace": "^0.3.0",
     "gulp-filelog": "^0.4.1",
     "gulp-front-matter": "^1.3.0",
-    "gulp-if": "^2.0.2",
-    "gulp-insert": "^0.5.0",
-    "gulp-istanbul": "^1.1.2",
-    "gulp-jasmine": "^2.4.2",
-    "gulp-jasmine-browser": "^1.9.0",
     "gulp-jison": "^1.2.0",
-    "gulp-less": "^3.3.2",
-    "gulp-livereload": "^3.8.1",
-    "gulp-mdvars": "^2.0.0",
-    "gulp-qunit": "^1.5.0",
-    "gulp-rename": "^1.2.2",
     "gulp-shell": "^0.6.3",
     "inject-loader": "^3.0.1",
     "jasmine": "^2.8.0",