SILOptimizer: remove a few unused includes and declarations

NFC

Author: eeckstein

include/swift/SILOptimizer/Utils/LoadStoreOptUtils.h

@@ -30,7 +30,6 @@
 #include "swift/SIL/InstructionUtils.h"
 #include "swift/SIL/Projection.h"
 #include "swift/SILOptimizer/Analysis/AliasAnalysis.h"
-#include "swift/SILOptimizer/Analysis/EscapeAnalysis.h"
 #include "swift/SILOptimizer/Analysis/TypeExpansionAnalysis.h"
 #include "swift/SILOptimizer/Analysis/ValueTracking.h"
 #include "swift/SILOptimizer/Utils/InstOptUtils.h"
@@ -366,9 +365,6 @@ class LSLocation : public LSBase {
   /// Check whether the 2 LSLocations must alias each other or not.
   bool isMustAliasLSLocation(const LSLocation &RHS, AliasAnalysis *AA);
 
-  /// Check whether the LSLocation can escape the current function.
-  bool isNonEscapingLocalLSLocation(SILFunction *Fn, EscapeAnalysis *EA);
-
   /// Expand this location to all individual fields it contains.
   ///
   /// In SIL, we can have a store to an aggregate and loads from its individual

lib/SILOptimizer/Transforms/ARCCodeMotion.cpp

@@ -76,7 +76,6 @@
 #include "swift/SIL/BasicBlockData.h"
 #include "swift/SILOptimizer/Analysis/ARCAnalysis.h"
 #include "swift/SILOptimizer/Analysis/AliasAnalysis.h"
-#include "swift/SILOptimizer/Analysis/EscapeAnalysis.h"
 #include "swift/SILOptimizer/Analysis/PostOrderAnalysis.h"
 #include "swift/SILOptimizer/Analysis/ProgramTerminationAnalysis.h"
 #include "swift/SILOptimizer/Analysis/RCIdentityAnalysis.h"