Remove the old (and now obsolete) PredictableMemoryAccessOptimizations pass

Author: eeckstein

Diff for: include/swift/SILOptimizer/PassManager/Passes.def

@@ -353,8 +353,6 @@ PASS(PerformanceConstantPropagation, "performance-constant-propagation",
      "Constant Propagation for Performance without Diagnostics")
 PASS(PerformanceDiagnostics, "performance-diagnostics",
      "Constant Propagation for Performance without Diagnostics")
-PASS(PredictableMemoryAccessOptimizations, "predictable-memaccess-opts",
-     "Predictable Memory Access Optimizations for Diagnostics")
 PASS(PredictableDeadAllocationElimination, "predictable-deadalloc-elim",
      "Eliminate dead temporary allocations after diagnostics")
 PASS(RedundantPhiElimination, "redundant-phi-elimination",

Diff for: include/swift/SILOptimizer/Utils/InstOptUtils.h

@@ -590,11 +590,6 @@ bool tryEliminateOnlyOwnershipUsedForwardingInst(
 IntegerLiteralInst *optimizeBuiltinCanBeObjCClass(BuiltinInst *bi,
                                                   SILBuilder &builder);
 
-/// Performs "predictable" memory access optimizations.
-///
-/// See the PredictableMemoryAccessOptimizations pass.
-bool optimizeMemoryAccesses(SILFunction *fn);
-
 /// Performs "predictable" dead allocation optimizations.
 ///
 /// See the PredictableDeadAllocationElimination pass.