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/runtime/stack.h b/runtime/stack.h
index 992bda5..e879214 100644
--- a/runtime/stack.h
+++ b/runtime/stack.h
@@ -755,10 +755,6 @@
     return cur_shadow_frame_;
   }
 
-  bool IsCurrentFrameInInterpreter() const {
-    return cur_shadow_frame_ != nullptr;
-  }
-
   HandleScope* GetCurrentHandleScope(size_t pointer_size) const {
     ArtMethod** sp = GetCurrentQuickFrame();
     // Skip ArtMethod*; handle scope comes next;
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);
       }
 
diff --git a/test/457-regs/regs_jni.cc b/test/457-regs/regs_jni.cc
index f62a77d..f867bdf 100644
--- a/test/457-regs/regs_jni.cc
+++ b/test/457-regs/regs_jni.cc
@@ -64,7 +64,7 @@
       CHECK_EQ(value, 1u);
 
       bool success = GetVReg(m, 2, kIntVReg, &value);
-      if (!IsCurrentFrameInInterpreter() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
+      if (!IsShadowFrame() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
         CHECK(!success);
       }
 
diff --git a/test/570-checker-osr/osr.cc b/test/570-checker-osr/osr.cc
index 50e8382..8eca6b2 100644
--- a/test/570-checker-osr/osr.cc
+++ b/test/570-checker-osr/osr.cc
@@ -43,7 +43,7 @@
           Runtime::Current()->GetJit()->GetCodeCache()->LookupOsrMethodHeader(m);
       if (header != nullptr && header == GetCurrentOatQuickMethodHeader()) {
         in_osr_method_ = true;
-      } else if (IsCurrentFrameInInterpreter()) {
+      } else if (IsShadowFrame()) {
         in_interpreter_ = true;
       }
       return false;