Replace unneeded compatibility definitions with point-at-bol, point-at-eol.

Replace unneeded compatibility definitions with point-at-bol, point-at-eol.

* lisp/progmodes/verilog-mode.el (verilog-get-beg-of-line)
(verilog-get-end-of-line): Remove.
(verilog-within-string, verilog-re-search-forward-substr)
(verilog-re-search-backward-substr, verilog-set-auto-endcomments)
(verilog-surelint-off, verilog-getopt-file, verilog-highlight-region):
Use point-at-bol, point-at-eol.
* lisp/progmodes/pascal.el (pascal-get-beg-of-line, pascal-get-end-of-line):
Remove.
(pascal-declaration-end, pascal-declaration-beg, pascal-within-string)
(electric-pascal-terminate-line, pascal-set-auto-comments)
(pascal-indent-paramlist, pascal-indent-declaration)
(pascal-get-lineup-indent, pascal-func-completion)
(pascal-get-completion-decl, pascal-var-completion, pascal-completion):
Use point-at-bol, point-at-eol.
* lisp/progmodes/flymake.el (flymake-line-beginning-position)
(flymake-line-end-position): Remove.
(flymake-highlight-line): Use point-at-bol, point-at-eol.
* lisp/eshell/esh-util.el (line-end-position, line-beginning-position):
Remove compat definitions.

* net/tramp/tramp-compat.el: Comment.