Remove ThrowLocation.

Note that this is a cleanup change, and has no functionality change.
The ThrowLocation had no use anymore.

Change-Id: I3d2126af1dc673cec3a0453ff3d56a172663a5f6
diff --git a/runtime/native/java_lang_Class.cc b/runtime/native/java_lang_Class.cc
index 1ea75f3..60d14e9 100644
--- a/runtime/native/java_lang_Class.cc
+++ b/runtime/native/java_lang_Class.cc
@@ -55,8 +55,7 @@
   // is especially handy for array types, since we want to avoid
   // auto-generating bogus array classes.
   if (!IsValidBinaryClassName(name.c_str())) {
-    ThrowLocation throw_location = soa.Self()->GetCurrentLocationForThrow();
-    soa.Self()->ThrowNewExceptionF(throw_location, "Ljava/lang/ClassNotFoundException;",
+    soa.Self()->ThrowNewExceptionF("Ljava/lang/ClassNotFoundException;",
                                    "Invalid name: %s", name.c_str());
     return nullptr;
   }