ART: Remove duplicate StackVisitor method.

Remove method that is the same as the older IsShadowFrame and only
used in tests.

Test: m ART_TEST_JIT=true ART_TEST_INTERPRETER=true test-art-host-run-test-454-get-vreg
Test: m ART_TEST_JIT=true ART_TEST_INTERPRETER=true test-art-host-run-test-457-regs
Test: m ART_TEST_JIT=true ART_TEST_INTERPRETER=true test-art-host-run-test-570-checker-osr
Change-Id: Id222d25d5345790b6c500ec8120880a3b9d79986
diff --git a/test/454-get-vreg/get_vreg_jni.cc b/test/454-get-vreg/get_vreg_jni.cc
index 0360eda..5fc5464 100644
--- a/test/454-get-vreg/get_vreg_jni.cc
+++ b/test/454-get-vreg/get_vreg_jni.cc
@@ -46,12 +46,12 @@
       CHECK_EQ(value, 42u);
 
       bool success = GetVReg(m, 1, kIntVReg, &value);
-      if (!IsCurrentFrameInInterpreter() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
+      if (!IsShadowFrame() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
         CHECK(!success);
       }
 
       success = GetVReg(m, 2, kIntVReg, &value);
-      if (!IsCurrentFrameInInterpreter() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
+      if (!IsShadowFrame() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
         CHECK(!success);
       }
 
@@ -83,12 +83,12 @@
       CHECK_EQ(value, 42u);
 
       bool success = GetVRegPair(m, 2, kLongLoVReg, kLongHiVReg, &value);
-      if (!IsCurrentFrameInInterpreter() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
+      if (!IsShadowFrame() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
         CHECK(!success);
       }
 
       success = GetVRegPair(m, 4, kLongLoVReg, kLongHiVReg, &value);
-      if (!IsCurrentFrameInInterpreter() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
+      if (!IsShadowFrame() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
         CHECK(!success);
       }