MC: Remove obsolete MachO UseAggressiveSymbolFolding.

Fix the FIXME and remove this old as(1) compat option. It was useful for
bringup of the integrated assembler to diff object files, but now it's
just causing more relocations than strictly necessary to be generated.

rdar://21201804

llvm-svn: 239084
diff --git a/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp b/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp
index 338fad8..8a6b221 100644
--- a/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp
+++ b/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp
@@ -31,8 +31,7 @@
 
 public:
   AArch64MachObjectWriter(uint32_t CPUType, uint32_t CPUSubtype)
-      : MCMachObjectTargetWriter(true /* is64Bit */, CPUType, CPUSubtype,
-                                 /*UseAggressiveSymbolFolding=*/true) {}
+      : MCMachObjectTargetWriter(true /* is64Bit */, CPUType, CPUSubtype) {}
 
   void RecordRelocation(MachObjectWriter *Writer, MCAssembler &Asm,
                         const MCAsmLayout &Layout, const MCFragment *Fragment,
diff --git a/llvm/lib/Target/ARM/MCTargetDesc/ARMMachObjectWriter.cpp b/llvm/lib/Target/ARM/MCTargetDesc/ARMMachObjectWriter.cpp
index f1a6d11..5d9b327 100644
--- a/llvm/lib/Target/ARM/MCTargetDesc/ARMMachObjectWriter.cpp
+++ b/llvm/lib/Target/ARM/MCTargetDesc/ARMMachObjectWriter.cpp
@@ -49,10 +49,8 @@
                                 const MCSymbol &S, uint64_t FixedValue);
 
 public:
-  ARMMachObjectWriter(bool Is64Bit, uint32_t CPUType,
-                      uint32_t CPUSubtype)
-    : MCMachObjectTargetWriter(Is64Bit, CPUType, CPUSubtype,
-                               /*UseAggressiveSymbolFolding=*/true) {}
+  ARMMachObjectWriter(bool Is64Bit, uint32_t CPUType, uint32_t CPUSubtype)
+      : MCMachObjectTargetWriter(Is64Bit, CPUType, CPUSubtype) {}
 
   void RecordRelocation(MachObjectWriter *Writer, MCAssembler &Asm,
                         const MCAsmLayout &Layout, const MCFragment *Fragment,
diff --git a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMachObjectWriter.cpp b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMachObjectWriter.cpp
index e14ff50..4c0965a 100644
--- a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMachObjectWriter.cpp
+++ b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMachObjectWriter.cpp
@@ -38,8 +38,7 @@
 
 public:
   PPCMachObjectWriter(bool Is64Bit, uint32_t CPUType, uint32_t CPUSubtype)
-      : MCMachObjectTargetWriter(Is64Bit, CPUType, CPUSubtype,
-                                 /*UseAggressiveSymbolFolding=*/Is64Bit) {}
+      : MCMachObjectTargetWriter(Is64Bit, CPUType, CPUSubtype) {}
 
   void RecordRelocation(MachObjectWriter *Writer, MCAssembler &Asm,
                         const MCAsmLayout &Layout, const MCFragment *Fragment,
diff --git a/llvm/lib/Target/X86/MCTargetDesc/X86MachObjectWriter.cpp b/llvm/lib/Target/X86/MCTargetDesc/X86MachObjectWriter.cpp
index 1bf8083..71b8e43 100644
--- a/llvm/lib/Target/X86/MCTargetDesc/X86MachObjectWriter.cpp
+++ b/llvm/lib/Target/X86/MCTargetDesc/X86MachObjectWriter.cpp
@@ -54,10 +54,8 @@
                               MCValue Target, uint64_t &FixedValue);
 
 public:
-  X86MachObjectWriter(bool Is64Bit, uint32_t CPUType,
-                      uint32_t CPUSubtype)
-    : MCMachObjectTargetWriter(Is64Bit, CPUType, CPUSubtype,
-                               /*UseAggressiveSymbolFolding=*/Is64Bit) {}
+  X86MachObjectWriter(bool Is64Bit, uint32_t CPUType, uint32_t CPUSubtype)
+      : MCMachObjectTargetWriter(Is64Bit, CPUType, CPUSubtype) {}
 
   void RecordRelocation(MachObjectWriter *Writer, MCAssembler &Asm,
                         const MCAsmLayout &Layout, const MCFragment *Fragment,