[Improvement] remove unused dependencies & scripts (#453)

test/unit/get-webpack-conf.js

@@ -18,7 +18,7 @@ function getWebpackConfig(testFileName) {
         options: {
           babel: {
             presets: ['env'],
-            plugins: ['transform-runtime', 'transform-vue-jsx']
+            plugins: ['transform-runtime']
           },
           vue: {
             autoprefixer: false,

test/unit/karma.conf.js

@@ -14,7 +14,7 @@ module.exports = function(config) {
     reporters: ['spec', 'coverage'],
     files: ['./index.js'],
     preprocessors: {
-      './index.js': ['webpack', 'sourcemap'],
+      './index.js': ['webpack'],
       'test/unit/!(components)/**/*.vue': ['coverage']
     },
     webpack: getWebpackConfig(getTestFileName()),