Remove dead code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128639 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 1815527..b4d023d 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -255,12 +255,8 @@
   MCSymbol *FunctionBeginSym, *FunctionEndSym;
 
   DIEInteger *DIEIntegerOne;
-private:
 
-  /// getNumSourceIds - Return the number of unique source ids.
-  unsigned getNumSourceIds() const {
-    return SourceIdMap.size();
-  }
+private:
 
   /// assignAbbrevNumber - Define a unique number for the abbreviation.
   ///