Drop obsolete hook and change all usage to new interface

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56572 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 6e9d935..93ebf21 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -47,11 +47,6 @@
                     E = GCMetadataPrinters.end(); I != E; ++I)
     delete I->second;
 }
-    
-std::string AsmPrinter::getSectionForFunction(const Function &F) const {
-  return TAI->getTextSection();
-}
-
 
 /// SwitchToTextSection - Switch to the specified text section of the executable
 /// if we are not already in it!
@@ -331,7 +326,7 @@
     // function body itself, otherwise the label differences won't make sense.
     // We should also do if the section name is NULL or function is declared in
     // discardable section.
-    SwitchToTextSection(getSectionForFunction(*F).c_str(), F);
+    SwitchToTextSection(TAI->SectionForGlobal(F).c_str(), F);
   } else {
     SwitchToDataSection(JumpTableDataSection);
   }