Don't quote self-quoting pcase patterns

Don't quote self-quoting pcase patterns

* admin/bzrmerge.el:
* lisp/char-fold.el:
* lisp/dired.el:
* lisp/emacs-lisp/derived.el:
* lisp/emacs-lisp/easy-mmode.el:
* lisp/emacs-lisp/easymenu.el:
* lisp/emacs-lisp/eieio-core.el:
* lisp/emacs-lisp/package.el:
* lisp/emacs-lisp/smie.el:
* lisp/faces.el:
* lisp/filesets.el:
* lisp/progmodes/modula2.el:
* lisp/progmodes/octave.el:
* lisp/progmodes/opascal.el:
* lisp/progmodes/perl-mode.el:
* lisp/progmodes/prolog.el:
* lisp/progmodes/ruby-mode.el:
* lisp/progmodes/sh-script.el:
* lisp/server.el:
* lisp/subr.el:
* lisp/textmodes/css-mode.el:
* test/lisp/emacs-lisp/pcase-tests.el: Don't quote self-quoting
'pcase' patterns.