perf tools: Remove misleading comments on map functions

When it converts sample IP to or from objdump-capable one, there's a
comment saying that kernel modules have DSO_SPACE__USER.  But commit
02213cec ("perf maps: Mark module DSOs with kernel type") changed
it and makes the comment confusing.  Let's get rid of it.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20240208181025.1329645-1-namhyung@kernel.org

tools/perf/util/map.c

@@ -552,10 +552,6 @@ u64 map__rip_2objdump(struct map *map, u64 rip)
 	if (dso->rel)
 		return rip - map__pgoff(map);
 
-	/*
-	 * kernel modules also have DSO_TYPE_USER in dso->kernel,
-	 * but all kernel modules are ET_REL, so won't get here.
-	 */
 	if (dso->kernel == DSO_SPACE__USER)
 		return rip + dso->text_offset;
 
@@ -584,10 +580,6 @@ u64 map__objdump_2mem(struct map *map, u64 ip)
 	if (dso->rel)
 		return map__unmap_ip(map, ip + map__pgoff(map));
 
-	/*
-	 * kernel modules also have DSO_TYPE_USER in dso->kernel,
-	 * but all kernel modules are ET_REL, so won't get here.
-	 */
 	if (dso->kernel == DSO_SPACE__USER)
 		return map__unmap_ip(map, ip - dso->text_offset);