Drop unused table_name alias from Arel::Table

Author: palkan

activerecord/lib/arel/table.rb

@@ -10,9 +10,6 @@ class << self; attr_accessor :engine; end
 
     attr_accessor :name, :table_alias
 
-    # TableAlias and Table both have a #table_name which is the name of the underlying table
-    alias :table_name :name
-
     def initialize(name, as: nil, klass: nil, type_caster: klass&.type_caster)
       @name =
         case name

activerecord/test/cases/arel/table_test.rb

@@ -186,10 +186,6 @@ class TableTest < Arel::Spec
       _(@relation.name).must_equal "users"
     end
 
-    it "should have a table name" do
-      _(@relation.table_name).must_equal "users"
-    end
-
     describe "[]" do
       describe "when given a Symbol" do
         it "manufactures an attribute if the symbol names an attribute within the relation" do