remove Release step as per README

tools/release/Bootstrap/Step/Release.pm

@@ -1,18 +0,0 @@
-#
-# Release step. Pushes bits to production.
-#
-package Bootstrap::Step::Release;
-use Bootstrap::Step;
-@ISA = ("Bootstrap::Step");
-
-sub Execute {
-    my $this = shift;
-    $this->Shell('cmd' => 'echo release');
-}
-
-sub Verify {
-    my $this = shift;
-    $this->Shell('cmd' => 'echo Verify release');
-}
-
-1;