Replace rspec-focused w/ more general library

That covers all things Rspec, including lingering `focus`es.

[#177398947]

cw-style.gemspec

@@ -28,10 +28,10 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "rubocop-rspec-focused", "= 0.0.3"
   spec.add_dependency "rubocop", "~> 1.18.3"
   spec.add_dependency "rubocop-thread_safety"
   spec.add_dependency "rubocop-rails"
+  spec.add_dependency "rubocop-rspec"
   spec.add_development_dependency "bundler", "~> 2.2.4"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec"

default.yml

@@ -1,7 +1,7 @@
 require:
-  - rubocop/rspec/focused
   - rubocop-thread_safety
   - rubocop-rails
+  - rubocop-rspec
   - ./lib/unless_with_multiple_conditions
   - ./lib/private_attribute_accessors
   - ./lib/update_not_update_attributes
@@ -92,9 +92,6 @@ Rails/Output:
 Rails/TimeZone:
   EnforcedStyle: 'flexible'
 
-RSpec/Focused:
-  Enabled: true
-
 Style/Documentation:
   Enabled: false
 
@@ -194,3 +191,9 @@ Style/TrailingCommaInHashLiteral:
 
 Style/IfUnlessModifier:
   Enabled: false
+
+RSpec:
+  Enabled: false
+
+RSpec/Focus:
+  Enabled: true