[ci] Remove comments describing Rubocop cops

What the cops does is in the documentation and it could change. So
better not having a comment.

Co-authored-by: Ana María Martínez Gómez <ammartinez@suse.de>

.rubocop.yml

@@ -15,39 +15,29 @@ AllCops:
 
 #################### Layout ###########################
 
-# Align the elements of a hash literal if they span more than one line.
 Layout/AlignHash:
-  # Alignment of entries using hash rocket as separator.
   EnforcedHashRocketStyle: table
-  # Alignment of entries using colon as separator.
   EnforcedColonStyle: table
-  # Select whether hashes that are the last argument in a method call should be
-  # inspected?
   EnforcedLastArgumentHashStyle: ignore_implicit
 
 # We decide disable this cop because we can't reach an agreement
 Layout/DotPosition:
   Enabled: false
 
-# Align ends correctly.
 Layout/EndAlignment:
   EnforcedStyleAlignWith: variable
 
 #################### Style ###########################
 
-# Find uses of alias where alias_method would be more appropriate (or is simply preferred due to configuration), and vice versa.
-# It also finds uses of alias :symbol rather than alias bareword.
 Style/Alias:
   EnforcedStyle: 'prefer_alias_method'
 
-# Use ` or %x around command literals.
 Style/CommandLiteral:
   EnforcedStyle: percent_x
 
 Style/Documentation:
   Enabled: false
 
-# Checks for redundant `return` expressions
 Style/RedundantReturn:
   Enabled: false
 
@@ -59,15 +49,12 @@ Style/WordArray:
 
 ##################### Metrics ##################################
 
-# Checks if the length a class exceeds some maximum value
 Metrics/ClassLength:
   Severity: refactor
 
-# Checks the length of lines in the source code.
 Metrics/LineLength:
   Max: 150
   IgnoredPatterns: ['\A#']
 
-# Checks if the length a module exceeds some maximum value
 Metrics/ModuleLength:
   Severity: refactor

src/api/.rubocop.yml

@@ -20,7 +20,6 @@ AllCops:
 Style/GlobalVars:
   AllowedVariables: ['$rabbitmq_conn', '$rabbitmq_exchange', '$rabbitmq_channel']
 
-# Checks for chaining of a block after another block that spans multiple lines.
 # We disabled this cop because of Rantly.
 Style/MultilineBlockChain:
   Exclude:
@@ -41,7 +40,6 @@ Rails:
 Rails/DynamicFindBy:
   Enabled: false
 
-# Enforces that 'exit' calls are not used.
 Rails/Exit:
   Exclude:
     - 'lib/memory_dumper.rb'