meta:hooks:pre-push: Refactor if-condition

meta/git/hooks/pre-push

@@ -27,10 +27,8 @@ url="$2"
 zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
 
 while read local_ref local_oid remote_ref remote_oid; do
-	if [ "$local_oid" = "$zero" ]; then
-		# Handle delete
-		:
-	else
+	[ "$local_oid" != "$zero" ] || continue
+
 	if [ "$remote_oid" = "$zero" ]; then
 		# New branch, examine all commits
 		range="$local_oid"
@@ -48,7 +46,6 @@ while read local_ref local_oid remote_ref remote_oid; do
 		printf >&2 "Aborting push"
 		exit 1
 	fi
-	fi
 done
 
 exit 0