Removing Pulsar's default mocha

package.json

@@ -46,7 +46,6 @@
     "base16-tomorrow-light-theme": "file:packages/base16-tomorrow-light-theme",
     "bookmarks": "file:packages/bookmarks",
     "bracket-matcher": "file:packages/bracket-matcher",
-    "chai": "4.3.4",
     "clear-cut": "^2.0.2",
     "coffeescript": "1.12.7",
     "color": "3.1.3",
@@ -121,9 +120,6 @@
     "link": "file:packages/link",
     "markdown-preview": "file:./packages/markdown-preview",
     "minimatch": "^3.0.3",
-    "mocha": "6.2.3",
-    "mocha-junit-reporter": "2.0.0",
-    "mocha-multi-reporters": "^1.1.4",
     "mock-spawn": "^0.2.6",
     "normalize-package-data": "3.0.2",
     "notifications": "file:./packages/notifications",