In strings, prefer plain ` and ' to \` and \'

In strings, prefer plain ` and ' to \` and \'

* lisp/allout.el (allout-insert-listified):
* lisp/emacs-lisp/easy-mmode.el (define-globalized-minor-mode):
* lisp/ls-lisp.el (ls-lisp-UCA-like-collation)
(ls-lisp-string-lessp):
* lisp/menu-bar.el (menu-bar-open):
* lisp/obsolete/otodo-mode.el (todo-top-priorities):
* lisp/progmodes/compile.el (compile):
* lisp/progmodes/etags.el (tags-loop-scan):
* lisp/progmodes/make-mode.el (makefile-browser-insert-continuation):
* lisp/subr.el (posn-actual-col-row):
* lisp/term/pc-win.el (x-list-fonts):
* lisp/textmodes/texinfmt.el (texinfmt-version):
* lisp/textmodes/texnfo-upd.el (texinfo-master-menu):
* lisp/time.el (display-time-world-list):
* lisp/tmm.el (tmm-menubar):
* src/buffer.c (syms_of_buffer):
* src/fileio.c (syms_of_fileio):
Omit unnecessary and confusing backslash before quote.
* lisp/erc/erc.el (erc-cmd-LASTLOG):
* lisp/progmodes/flymake.el (flymake-fix-file-name):
* lisp/progmodes/vhdl-mode.el (vhdl-in-extended-identifier-p):
Fix string that was intended to escape a backslash and not a quote.