[DebugInfo] Delete deleted getLine/getColumn

r250405 deleted the functions from DILexicalBlockBase.

Author: MaskRay

llvm/include/llvm/IR/DebugInfoMetadata.h

@@ -2176,11 +2176,6 @@ class DILexicalBlockFile : public DILexicalBlockBase {
                     (Scope, File, Discriminator))
 
   TempDILexicalBlockFile clone() const { return cloneImpl(); }
-
-  // TODO: Remove these once they're gone from DILexicalBlockBase.
-  unsigned getLine() const = delete;
-  unsigned getColumn() const = delete;
-
   unsigned getDiscriminator() const { return Discriminator; }
 
   static bool classof(const Metadata *MD) {