chore: Remove some unneeded things from .gitignore (ietf-tools#3945)

* chore: Remove some unneeded things from .gitignore

* Address review comments

Author: larseggert

.gitignore

@@ -1,22 +1,6 @@
-# A simulation of Subversion default ignores, generated by reposurgeon.
-*.o
-*.lo
-*.la
-*.al
-*.libs
-*.so
-*.so.[0-9]*
-*.a
-*.pyc
-*.pyo
-*.rej
-*~
-*.#*
-.*.swp
 .DS_store
 datatracker.sublime-project
 datatracker.sublime-workspace
-# Simulated Subversion default ignores end here
 /.coverage
 /.factoryboy_random_state
 /.mypy_cache
@@ -26,40 +10,18 @@ datatracker.sublime-workspace
 /.Python
 /.settings
 /.tmp
-/attic
-/bin
-/bootstrap/node_modules
 /data
 /docker/docker-compose.extend-custom.yml
 /env
-/etc
 /ghostdriver.log
 /htmlcov
-/ietf/static/ietf/bootstrap
-/include
-/INSTALL.pdf
 /latest-coverage.json
-/lib
-/local
 /media
-/mergelog
-/mergequeue
-/minimum-requirements.txt
 /node_modules
-/pip-selfcheck.json
 /release-coverage.json
-/selenium
-/settings_local.py
-/share
-/static
-/testresult
-/.testresult
 /tmp
-/tmp-*
-/trunk27
-/trunk36
-/trunk37
-/unix.tag
+/tmp-nomcom-public-keys-dir
+/tmp-storage-meetinghosttests-dir
 *.pyc
 __pycache__
 .yarn/*