git: Remove left-over dsf

Diff-so-fancy is replaced by delta.

git/.local/bin/dsf

@@ -1,18 +0,0 @@
-#!/usr/bin/env sh
-# Pretty git diff display
-
-# degrade diffs gracefully:
-# prefer diff-so-fancy if it is installed,
-# otherwise fallback to git's own prettifier,
-# if nothing exists just pass it on
-dsf() {
-  if exist diff-so-fancy; then
-    diff-so-fancy
-  elif exist /usr/share/git/diff-highlight/diff-highlight; then
-    /usr/share/git/diff-highlight/diff-highlight
-  else
-    cat
-  fi
-}
-
-dsf