ruby: remove unneeded parenthesis from methods

commit eeb33da43035b5400f8d1830ea52a68691b3a678
Author: John Bampton <jbampton@gmail.com>
Date:   Mon Oct 31 23:53:43 2022 +1000

    Fix up

commit 80923c8f92a58b2f33a36d6403de7f6341973110
Merge: bc89500f6 416f012f6
Author: John Bampton <jbampton@users.noreply.github.com>
Date:   Mon Oct 31 20:12:59 2022 +1000

    Merge branch 'master' into ruby-remove-parenthesis

commit bc89500f6357c453b457516452ffcc7fd03fee88
Author: John Bampton <jbampton@gmail.com>
Date:   Mon Oct 31 14:39:20 2022 +1000

    ruby: remove unneeded parenthesis from methods

benchmark/bm_so_lists.rb

@@ -5,7 +5,7 @@
 NUM = 300
 SIZE = 10000
 
-def test_lists()
+def test_lists
   # create a list of integers (Li1) from 1 to SIZE
   li1 = (1..SIZE).to_a
   # copy the list to li2 (not by individual items)

lib/mruby/build/load_gems.rb

@@ -75,7 +75,7 @@ module MRuby
       def git?()        return !!@repo;                     end
       def gemname()     return File.basename(@gemdir);      end
 
-      def hash()
+      def hash
         return [@gemdir, @repo, @branch, @commit, @canonical, @path].hash
       end
 

test/t/bs_block.rb

@@ -374,7 +374,7 @@ assert('BS Block [ruby-dev:31147]') do
 end
 
 assert('BS Block [ruby-dev:31160]') do
-  def m()
+  def m
     yield
   end
   assert_nil m {|(v,(*))|}
@@ -389,7 +389,7 @@ assert('BS Block [issue #750]') do
 end
 
 assert('BS Block 31') do
-  def m()
+  def m
     yield
   end
   assert_nil m {|((*))|}

test/t/module.rb

@@ -729,14 +729,14 @@ end
 
 assert('Issue 1467') do
   module M1
-    def initialize()
+    def initialize
       super()
     end
   end
 
   class C1
     include M1
-      def initialize()
+      def initialize
         super()
       end
   end