Manual user keymap removal

[zvecr]

Description

Keymaps removed manually as hitting diminishing returns on greps.

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout/userspace (addition or update)
• Documentation

Issues Fixed or Closed by This PR

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[zvecr]

git log --name-only --format="" -1 | sed 's^.*/keymaps/^^' | cut -d'/' -f1 | sort | uniq

Keymaps:

binman
bliss
blu
boardy
dbroqua_hhkb
devinceble_hhkb_tofu
dumam
ebrowncross
gbchk
gwillad
iso_de_andys8
iso_de_arrow_0x544d
jockyxu1122_ansi
jockyxu1122_iso
mariocs
mauin
mkillewald_iso
nazzer
phil
resfury
silly