editor: remove code supporting main editing area sidebar as it's not used anymore
-rw-r--r-- 21 .gitignore
-rw-r--r-- 1929 .jshintrc
-rw-r--r-- 1943 Gruntfile.js
-rw-r--r-- 461 karma.conf.js
drwxr-xr-x - libs
-rw-r--r-- 255 package.json
drwxr-xr-x - src
drwxr-xr-x - tests