Use Gemfile and rubocop from rakelib

.rubocop.yml

@@ -1,5 +1,8 @@
 inherit_from: .rubocop_todo.yml
 
+Metrics/LineLength:
+  Max: 100
+
 Metrics/ParameterLists:
   Max: 8
 

.rubocop_todo.yml

@@ -6,17 +6,6 @@
 # Note that changes in the inspected code, or installation of new
 # versions of RuboCop, may require this file to be generated again.
 
-# Offense count: 1
-Lint/RescueException:
-  Exclude:
-    - 'rakelib/setup-project.rake'
-
-# Offense count: 17
-# Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
-# URISchemes: http, https
-Metrics/LineLength:
-  Max: 270
-
 # Offense count: 1
 # Configuration parameters: ExpectMatchingDefinition, Regex, IgnoreExecutableScripts, AllowedAcronyms.
 # AllowedAcronyms: CLI, DSL, ACL, API, ASCII, CPU, CSS, DNS, EOF, GUID, HTML, HTTP, HTTPS, ID, IP, JSON, LHS, QPS, RAM, RHS, RPC, SLA, SMTP, SQL, SSH, TCP, TLS, TTL, UDP, UI, UID, UUID, URI, URL, UTF8, VM, XML, XMPP, XSRF, XSS
@@ -40,10 +29,3 @@ Style/FrozenStringLiteralComment:
 Style/SignalException:
   Exclude:
     - 'Dangerfile'
-
-# Cop supports --auto-correct.
-# Configuration parameters: SupportedStyles.
-# SupportedStyles: use_perl_names, use_english_names
-Style/SpecialGlobalVars:
-  Exclude:
-    - 'Rakefile'

Gemfile

@@ -6,14 +6,13 @@ ruby '2.4.1'
 
 source 'https://rubygems.org'
 
+eval_gemfile File.join(File.dirname(__FILE__), 'rakelib/Gemfile')
+
 gem 'cocoapods', '1.2.1'
 gem 'danger', '4.3.3'
 gem 'danger-rubocop', '0.4.0'
 gem 'danger-slather', '0.0.6'
 gem 'danger-xcode_summary', '0.1.4'
-gem 'git', '1.3.0'
-gem 'plist', '3.2.0'
-gem 'rake', '12.0.0'
 gem 'rubocop', '0.48.1'
 gem 'xcpretty-json-formatter', '0.1.0'
 gem 'xcpretty-travis-formatter', '0.0.4'