.rubocop.yml in newrelic_rpm-8.16.0 vs .rubocop.yml in newrelic_rpm-9.0.0

@@ -1079,22 +1079,10 @@
 
 # TODO: Enable when time can be spent on it (no autocorrect)
 Performance/MethodObjectAsBlock:
   Enabled: false
 
-# TODO: OLD RUBIES - Requires 2.4
-Performance/RegexpMatch:
-  Enabled: false
-
-# TODO: OLD RUBIES - Requires 2.4
-Performance/Sum:
-  Enabled: false
-
-# TODO: OLD RUBIES - Requires 2.3
-Performance/UnfreezeString:
-  Enabled: false
-
 # Disabling for now
 Security/Eval:
   Enabled: false
 
 # Disabling for now
@@ -1328,15 +1316,10 @@
   Enabled: false
 
 Style/ExponentialNotation:
   Enabled: false
 
-# TODO: MAJOR VERSION - Re-enable FetchEnvVar after dropping support for Ruby 2.2
-#                       Ruby 2.3+ allows for ENV.fetch('KEY') { default }
-Style/FetchEnvVar:
-  Enabled: false
-
 Style/FloatDivision:
   Enabled: false
 
 # Disabling for now
 Style/For:
@@ -1737,20 +1720,9 @@
   Enabled: false
   # EnforcedStyle: implicit
 
 Style/ReturnNil:
   Enabled: false
-
-# Can't use, not available in Ruby 2.2
-Style/SafeNavigation:
-  Enabled: false
-  # ConvertCodeThatCanStartToReturnNil: false
-  # AllowedMethods:
-  #   - present?
-  #   - blank?
-  #   - presence
-  #   - try
-  #   - try!
 
 Style/Sample:
   Enabled: true
 
 Style/SelfAssignment: