[TASK] Remove obsolete Gemfile

Gemfile

-source 'https://rubygems.org'
-gem "sass"
\ No newline at end of file

Gemfile.lock

-GEM
-  remote: https://rubygems.org/
-  specs:
-    sass (3.4.16)
-
-PLATFORMS
-  ruby
-
-DEPENDENCIES
-  sass
-
-BUNDLED WITH
-   1.10.6