[pgAdmin][RM5131] ctrl + a shortcut does not move cursor in sql editor with macOS

[Aditya Toshniwal]

Hi Hackers,

Attached patch removes the incorrect overriding of default CodeMirror
shortcuts.
Please review.

-- 
Thanks,
Aditya Toshniwal
pgAdmin hacker | Sr. Software Engineer | *edbpostgres.com*
<http://edbpostgres.com>
"Don't Complain about Heat, Plant a TREE"

RM5131.patch
Description: Binary data