PPC: Cleanup ABI-specifc code.

src/ppc/assembler-ppc.cc

Index: src/ppc/assembler-ppc.cc
diff --git a/src/ppc/assembler-ppc.cc b/src/ppc/assembler-ppc.cc
index 147fb59aaea0a9387bc1d371a411a21f8a593261..d920eaa9a0782cc0c19ab2933ac2b50ab3cc7ed7 100644
--- a/src/ppc/assembler-ppc.cc
+++ b/src/ppc/assembler-ppc.cc
@@ -1504,14 +1504,14 @@ void Assembler::divdu(Register dst, Register src1, Register src2, OEBit o,
 // Code address skips the function descriptor "header".
 // TOC and static chain are ignored and set to 0.
 void Assembler::function_descriptor() {
-#if ABI_USES_FUNCTION_DESCRIPTORS
-  Label instructions;
-  DCHECK(pc_offset() == 0);
-  emit_label_addr(&instructions);
-  dp(0);
-  dp(0);
-  bind(&instructions);
-#endif
+  if (ABI_USES_FUNCTION_DESCRIPTORS) {
+    Label instructions;
+    DCHECK(pc_offset() == 0);
+    emit_label_addr(&instructions);
+    dp(0);
+    dp(0);
+    bind(&instructions);
+  }
 }