Remove phantomjs

Removed phantomjs-prebuilt and karma-phantomjs-launcher since
karma-phantomjs-launcher depends on phantomjs-prebuilt.
We are seeing the following error with phantomjs:

| npm ERR! node v4.6.1
| npm ERR! npm  v2.15.9
| npm ERR! code ELIFECYCLE
|
| npm ERR! phantomjs-prebuilt@2.1.16 install: `node install.js`
| npm ERR! Exit status 1
| npm ERR!
| npm ERR! Failed at the phantomjs-prebuilt@2.1.16 install script 'node install.js'

phantomjs was added in bbcf670a1 for use in the test infrastructure. Since we
are not using the test infrastructure, remove phantomjs for now.

Resolves openbmc/openbmc#2922

Tested: Verified I no longer see the error with this commit.
Change-Id: I9d7b5affadde333cf21041cab489177ea92bba5d
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/package.json b/package.json
index 73cc34a..6cbcc83 100644
--- a/package.json
+++ b/package.json
@@ -89,7 +89,6 @@
     "karma": "^1.1.0",
     "karma-coverage": "^1.0.0",
     "karma-jasmine": "^1.0.2",
-    "karma-phantomjs-launcher": "^1.0.0",
     "karma-sourcemap-loader": "^0.3.7",
     "karma-spec-reporter": "0.0.31",
     "karma-webpack": "2.0.4",
@@ -97,7 +96,6 @@
     "null-loader": "^0.1.1",
     "onchange": "^3.2.1",
     "parallelshell": "^2.0.0",
-    "phantomjs-prebuilt": "^2.1.4",
     "postcss-loader": "2.0.6",
     "raw-loader": "^0.5.1",
     "rimraf": "^2.5.1",