Cleanup git configuration

Signed-off-by: Knut Ahlers <knut@ahlers.me>

.gitconfig

@@ -26,7 +26,7 @@
   renames = true
 
 [push]
-  default = tracking
+  default = upstream
   gpgSign = if-asked
 
 [alias]
@@ -37,12 +37,9 @@
   co = checkout
   df = diff
   lg = log -p
-  cues = blame
-  elog = log  --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --date=relative
   starecopu = "!sh -c 'git stash && git pull --rebase && git stash pop && git commit -am \"$0\" && git push'"
   spps = "!sh -c 'git stash && git pull --rebase && git push && git stash pop'"
   pp = "!sh -c 'git pull --rebase && git push'"
-  squash = !sh -c 'git commit -m \"squash! $(git log -1 --format='\\''%s'\\'' $@)\"' -
   ri = rebase --interactive --autosquash
   lg = "log --color --graph --pretty=format:'%Cred%h%Creset [%G?]%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit"
   sign-rebase = "!GIT_SEQUENCE_EDITOR='sed -i -re s/^pick/e/' sh -c 'git rebase -i $1 && git commit --amend -S --no-edit && while git rebase --continue; do git commit --amend -S --no-edit; done' -"
@@ -51,7 +48,7 @@
   denyNonFastForwards = true
 
 [rerere]
-  enabled = 1
+  enabled = true
 
 [gpg]
   program = gpg2