Add define-key "C-c C-w" as subword-mode explicitly

By default c-subword-mode is assigned, this is an obsoleted alias.

This change was introduced in
5a1f99d, but there is no point in
toggling the mode when defining a keymap.
5a1f99d

GitHub-Issue: 89

Author: zonuexe

php-mode.el

@@ -423,10 +423,7 @@ local variables, set NIL."
     ;;     https://www.gnu.org/software/emacs/manual/html_node/ccmode/Subword-Movement.html
     ;;
     ;; for more information about Submode Word.
-    (if (boundp 'subword-mode)
-        (if subword-mode
-            (subword-mode nil)
-          (subword-mode t)))
+    (define-key map (kbd "C-c C-w") 'subword-mode)
 
     ;; We inherit c-beginning-of-defun and c-end-of-defun from CC Mode
     ;; but we have two replacement functions specifically for PHP.  We