git-preview: remove

packages/git-preview.nix

@@ -1,23 +0,0 @@
-{
-  coreutils,
-  git,
-  writers,
-}:
-writers.writeDashBin "git-preview" ''
-  set -efu
-  head_commit=$(${git}/bin/git log -1 --format=%H)
-  merge_commit=$1; shift
-  merge_message='Merge for git-preview'
-  preview_dir=$(${coreutils}/bin/mktemp --tmpdir -d git-preview.XXXXXXXX)
-  preview_name=$(${coreutils}/bin/basename "$preview_dir")
-  ${git}/bin/git worktree add --detach -f "$preview_dir" 2>/dev/null
-  ${git}/bin/git -C "$preview_dir" checkout -q "$head_commit"
-  ${git}/bin/git -C "$preview_dir" merge \
-      ''${GIT_PREVIEW_MERGE_STRATEGY+-s "$GIT_PREVIEW_MERGE_STRATEGY"} \
-      -m "$merge_message" \
-      -q \
-      "$merge_commit"
-  ${git}/bin/git -C "$preview_dir" diff "$head_commit.." "$@"
-  ${coreutils}/bin/rm -fR "$preview_dir"
-  ${coreutils}/bin/rm -R .git/worktrees/"$preview_name"
-''