task-refs: fix maps parse bug

meet below error when I run "sudo task-refs -p 1", so for demo I change
to use the temporary implementation, we can debug more on this later,
thanks.

parse failed: 4 /proc/1/maps
55a915c4d000-55a915d9b000 r-xp 00000000 fe:01 9310775                    /lib/systemd/systemd

ProcMaps.cc

@@ -7,7 +7,7 @@
 #include "ProcMaps.h"
 
 
-#if 1
+#if 0
 static int parse_proc_maps(pid_t pid, std::vector<proc_maps_entry>& maps)
 {
   char filename[PATH_MAX];