ART: Remove Baseline compiler

We don't need Baseline any more and it hasn't been maintained for
a while anyway. Let's remove it.

Change-Id: I442ed26855527be2df3c79935403a25b1ee55df6
diff --git a/compiler/optimizing/code_generator_x86_64.h b/compiler/optimizing/code_generator_x86_64.h
index 505c9dc..9de9d9e 100644
--- a/compiler/optimizing/code_generator_x86_64.h
+++ b/compiler/optimizing/code_generator_x86_64.h
@@ -347,8 +347,7 @@
 
   Location GetStackLocation(HLoadLocal* load) const OVERRIDE;
 
-  void SetupBlockedRegisters(bool is_baseline) const OVERRIDE;
-  Location AllocateFreeRegister(Primitive::Type type) const OVERRIDE;
+  void SetupBlockedRegisters() const OVERRIDE;
   void DumpCoreRegister(std::ostream& stream, int reg) const OVERRIDE;
   void DumpFloatingPointRegister(std::ostream& stream, int reg) const OVERRIDE;
   void Finalize(CodeAllocator* allocator) OVERRIDE;