Fix rubocop offenses

Author: alexandermeindl

Diff for: lib/redmine_git_hosting/patches/user_patch.rb

@@ -29,7 +29,7 @@ def gitolite_identifier
       end
 
       def gitolite_projects
-        projects.uniq.select { |p| p.gitolite_repos.any? }
+        projects.select { |p| p.gitolite_repos.any? }
       end
 
       # Syntaxic sugar

Diff for: lib/redmine_git_hosting/redmine_plugin_loader.rb

@@ -103,7 +103,7 @@ def load_plugin!
     def load_setting_file(file)
       return {} unless File.exist? file
 
-      data = YAML.safe_load(ERB.new(IO.read(file)).result) || {}
+      data = YAML.safe_load(ERB.new(File.read(file)).result) || {}
       data.symbolize_keys
     end