Remove unnecessary badges and dependencies for a cleaner project setup

- Removed build status, code climate, and coverage status badges from README.md
- Removed `simplecov` and `coveralls` development dependencies from `feed_searcher.gemspec`

Author: ssig33

README.md

@@ -1,7 +1,6 @@
-# FeedSearcher [![Build Status](https://travis-ci.org/fastladder/feed_searcher.png?branch=master)](https://travis-ci.org/fastladder/feed_searcher) [![Code Climate](https://codeclimate.com/github/fastladder/feed_searcher.png)](https://codeclimate.com/github/fastladder/feed_searcher) [![Coverage Status](https://coveralls.io/repos/fastladder/feed_searcher/badge.png?branch=master)](https://coveralls.io/r/fastladder/feed_searcher)
+# FeedSearcher 
 Search RSS feed URLs from the given URL.
 
-
 ## Installation
 ```
 $ gem install feed_searcher

feed_searcher.gemspec

@@ -25,7 +25,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "pry"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "rspec"
-  spec.add_development_dependency "simplecov"
   spec.add_development_dependency "webmock"
-  spec.add_development_dependency "coveralls"
 end