Elimina el plugin Redmine Git Hosting

Finalmente se descarta por los problemas de configuración y potencial
brecha de seguridad al requerir acceso global al puerto ssh.

plugins/redmine_git_hosting/app/services/redmine_hooks/base.rb

@@ -1,70 +0,0 @@
-module RedmineHooks
-  class Base
-
-    attr_reader :object
-    attr_reader :payloads
-
-
-    def initialize(object, payloads = {})
-      @object   = object
-      @payloads = payloads
-    end
-
-
-    class << self
-
-      def call(object, payloads = {})
-        new(object, payloads).call
-      end
-
-    end
-
-
-    def call
-      raise NotImplementedError
-    end
-
-
-    def start_message
-      raise NotImplementedError
-    end
-
-
-    private
-
-
-      def logger
-        RedmineGitHosting.logger
-      end
-
-
-      def success_message
-        " [success]\n"
-      end
-
-
-      def failure_message
-        " [failure]\n"
-      end
-
-
-      def log_hook_succeeded
-        logger.info('Succeeded!')
-      end
-
-
-      def log_hook_failed
-        logger.error('Failed!')
-      end
-
-
-      def execute_hook(&block)
-        y = ''
-        logger.info(start_message)
-        y << "  - #{start_message} ... "
-        yield y
-        y
-      end
-
-  end
-end