Make ResolveField not rely on Field::GetType resolution

Change-Id: I10f4a874809ac9db2cd54e200cf10eb7c8979fce
diff --git a/src/signal_catcher.cc b/src/signal_catcher.cc
index 851aab7..41d0fe4 100644
--- a/src/signal_catcher.cc
+++ b/src/signal_catcher.cc
@@ -116,9 +116,11 @@
 
   runtime->Dump(os);
 
-  std::string maps;
-  if (ReadFileToString("/proc/self/maps", &maps)) {
-    os << "/proc/self/maps:\n" << maps;
+  if (false) {
+    std::string maps;
+    if (ReadFileToString("/proc/self/maps", &maps)) {
+      os << "/proc/self/maps:\n" << maps;
+    }
   }
 
   os << "----- end " << getpid() << " -----\n";