Drop unused variables to fix build

This is a merge conflict between #22740 and #20156.

src/sysupdate/sysupdate-pattern.c

@@ -189,7 +189,6 @@ static int pattern_split(
 int pattern_match(const char *pattern, const char *s, InstanceMetadata *ret) {
         _cleanup_(instance_metadata_destroy) InstanceMetadata found = INSTANCE_METADATA_NULL;
         _cleanup_(pattern_element_free_allp) PatternElement *elements = NULL;
-        PatternElement *e;
         const char *p;
         int r;
 
@@ -412,7 +411,6 @@ nope:
 
 int pattern_match_many(char **patterns, const char *s, InstanceMetadata *ret) {
         _cleanup_(instance_metadata_destroy) InstanceMetadata found = INSTANCE_METADATA_NULL;
-        char **p;
         int r;
 
         STRV_FOREACH(p, patterns) {
@@ -454,7 +452,6 @@ int pattern_format(
 
         _cleanup_(pattern_element_free_allp) PatternElement *elements = NULL;
         _cleanup_free_ char *j = NULL;
-        PatternElement *e;
         int r;
 
         assert(pattern);