remove blank lines in the start of the ActiveRecord files

activerecord/lib/active_record/associations/has_many_through_association.rb

@@ -1,4 +1,3 @@
-
 module ActiveRecord
   # = Active Record Has Many Through Association
   module Associations

activerecord/lib/active_record/associations/has_one_association.rb

@@ -1,4 +1,3 @@
-
 module ActiveRecord
   # = Active Record Belongs To Has One Association
   module Associations

activerecord/lib/active_record/connection_adapters/schema_cache.rb

@@ -1,4 +1,3 @@
-
 module ActiveRecord
   module ConnectionAdapters
     class SchemaCache

activerecord/lib/active_record/query_cache.rb

@@ -1,4 +1,3 @@
-
 module ActiveRecord
   # = Active Record Query Cache
   class QueryCache

activerecord/lib/active_record/readonly_attributes.rb

@@ -1,4 +1,3 @@
-
 module ActiveRecord
   module ReadonlyAttributes
     extend ActiveSupport::Concern

activerecord/lib/active_record/relation/batches.rb

@@ -1,4 +1,3 @@
-
 module ActiveRecord
   module Batches
     # Looping through a collection of records from the database

activerecord/lib/active_record/schema.rb

@@ -1,4 +1,3 @@
-
 module ActiveRecord
   # = Active Record Schema
   #

activerecord/lib/active_record/timestamp.rb

@@ -1,4 +1,3 @@
-
 module ActiveRecord
   # = Active Record Timestamp
   #