Delete dead code

[mehdi_amini]

Thanks!

[bondhugula]

Commit title: Delete dead code -> Delete dead code in MLIR AsmPrinter

[sanjoy]

In D118501#3281164, @bondhugula wrote:

Commit title: Delete dead code -> Delete dead code in MLIR AsmPrinter

Sorry I noticed this after submission and I can't fix it now. Will keep in mind for later.

mlir/lib/IR/AsmPrinter.cpp

explicit AsmStateImpl(Operation *op, const OpPrintingFlags &printerFlags,
       : interfaces(op->getContext()), nameState(op, printerFlags),
         printerFlags(printerFlags), locationMap(locationMap) {}
 
   /// Initialize the alias state to enable the printing of aliases.
   void initializeAliases(Operation *op) {
     aliasState.initialize(op, printerFlags, interfaces);
   }
 
-  /// Get an instance of the OpAsmDialectInterface for the given dialect, or
-  /// null if one wasn't registered.
-  const OpAsmDialectInterface *getOpAsmInterface(Dialect *dialect) {
-    return interfaces.getInterfaceFor(dialect);
-  }
-
   /// Get the state used for aliases.
   AliasState &getAliasState() { return aliasState; }
 
   /// Get the state used for SSA names.
   SSANameState &getSSANameState() { return nameState; }
 
   /// Register the location, line and column, within the buffer that the given
   /// operation was printed at.