Update Rubocop config for new version

.rubocop_styleguide.yml

@@ -5,7 +5,7 @@
 # rubocop locally, the default configuration file `.rubocop.yml` loads
 # our "todo lists" to ignore all current violations.
 AllCops:
-  TargetRubyVersion: 2.1
+  TargetRubyVersion: 2.2
   TargetRailsVersion: 3.2
   Exclude:
     - 'bin/**/*'

.rubocop_todo.yml

@@ -54,7 +54,7 @@ Layout/ExtraSpacing:
 # Cop supports --auto-correct.
 # Configuration parameters: IndentationWidth.
 # SupportedStyles: special_inside_parentheses, consistent, align_braces
-Layout/IndentHash:
+Layout/IndentFirstHashElement:
   EnforcedStyle: consistent
 
 # Offense count: 1
@@ -235,17 +235,6 @@ Naming/VariableNumber:
   Exclude:
     - 'spec/lib/open_food_network/products_and_inventory_report_spec.rb'
 
-# Offense count: 1
-Performance/Caller:
-  Exclude:
-    - 'app/controllers/application_controller.rb'
-
-# Offense count: 3
-# Cop supports --auto-correct.
-Performance/InefficientHashSearch:
-  Exclude:
-    - 'spec/controllers/api/products_controller_spec.rb'
-
 # Offense count: 1
 # Configuration parameters: EnforcedStyle.
 # SupportedStyles: strict, flexible