Remove incorrect transformation of getAndSet

getAndSet returns the old value of the memory address instead of a
boolean. The correspondent atomic symbol hasn't been implemented, thus
remove the incorrent transformation for now.

Signed-off-by: Liqun Liu <liqunl@ca.ibm.com>

runtime/compiler/optimizer/J9RecognizedCallTransformer.cpp

@@ -130,10 +130,8 @@ bool J9::RecognizedCallTransformer::isInlineable(TR::TreeTop* treetop)
    switch(node->getSymbol()->castToMethodSymbol()->getMandatoryRecognizedMethod())
       {
       case TR::sun_misc_Unsafe_getAndAddInt:
-      case TR::sun_misc_Unsafe_getAndSetInt:
          return TR::Compiler->target.cpu.isX86() && !comp()->getOption(TR_DisableUnsafe) && !comp()->compileRelocatableCode() && !TR::Compiler->om.canGenerateArraylets();
       case TR::sun_misc_Unsafe_getAndAddLong:
-      case TR::sun_misc_Unsafe_getAndSetLong:
          return TR::Compiler->target.cpu.isX86() && !comp()->getOption(TR_DisableUnsafe) && !comp()->compileRelocatableCode() && TR::Compiler->target.is64Bit() && !TR::Compiler->om.canGenerateArraylets();
       case TR::java_lang_Class_isAssignableFrom:
          return cg()->supportsInliningOfIsAssignableFrom();
@@ -164,15 +162,9 @@ void J9::RecognizedCallTransformer::transform(TR::TreeTop* treetop)
       case TR::sun_misc_Unsafe_getAndAddInt:
          processUnsafeAtomicCall(treetop, node, TR::SymbolReferenceTable::atomicFetchAndAdd32BitSymbol);
          break;
-      case TR::sun_misc_Unsafe_getAndSetInt:
-         processUnsafeAtomicCall(treetop, node, TR::SymbolReferenceTable::atomicSwap32BitSymbol);
-         break;
       case TR::sun_misc_Unsafe_getAndAddLong:
          processUnsafeAtomicCall(treetop, node, TR::SymbolReferenceTable::atomicFetchAndAdd64BitSymbol);
          break;
-      case TR::sun_misc_Unsafe_getAndSetLong:
-         processUnsafeAtomicCall(treetop, node, TR::SymbolReferenceTable::atomicSwap64BitSymbol);
-         break;
       case TR::java_lang_Class_isAssignableFrom:
          process_java_lang_Class_IsAssignableFrom(treetop, node);
          break;