Don't use signal handlers in interpreter only mode

Bug: 15543631

Change-Id: I8f251b5a66487dce3ac3127bdf3b5bc824d0e4bc
diff --git a/runtime/runtime.cc b/runtime/runtime.cc
index ccf478c..717381c 100644
--- a/runtime/runtime.cc
+++ b/runtime/runtime.cc
@@ -574,7 +574,7 @@
       break;
   }
 
-  if (implicit_checks_supported &&
+  if (!options->interpreter_only_ && implicit_checks_supported &&
       (options->explicit_checks_ != (ParsedOptions::kExplicitSuspendCheck |
           ParsedOptions::kExplicitNullCheck |
           ParsedOptions::kExplicitStackOverflowCheck) || kEnableJavaStackTraceHandler)) {