diff --git a/lib/Target/CellSPU/MCTargetDesc/SPUMCTargetDesc.h b/lib/Target/CellSPU/MCTargetDesc/SPUMCTargetDesc.h
index a3717b0bfc1..d26449e8908 100644
--- a/lib/Target/CellSPU/MCTargetDesc/SPUMCTargetDesc.h
+++ b/lib/Target/CellSPU/MCTargetDesc/SPUMCTargetDesc.h
@@ -15,9 +15,7 @@
 #define SPUMCTARGETDESC_H
 
 namespace llvm {
-class MCSubtargetInfo;
 class Target;
-class StringRef;
 
 extern Target TheCellSPUTarget;
 
diff --git a/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.h b/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.h
index b18d23a2fbb..2238b1ae5f3 100644
--- a/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.h
+++ b/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.h
@@ -17,7 +17,6 @@
 namespace llvm {
 class MCSubtargetInfo;
 class Target;
-class StringRef;
 
 extern Target TheHexagonTarget;
 
diff --git a/lib/Target/MBlaze/MCTargetDesc/MBlazeMCTargetDesc.h b/lib/Target/MBlaze/MCTargetDesc/MBlazeMCTargetDesc.h
index 088d163fb93..ae82c32a5f2 100644
--- a/lib/Target/MBlaze/MCTargetDesc/MBlazeMCTargetDesc.h
+++ b/lib/Target/MBlaze/MCTargetDesc/MBlazeMCTargetDesc.h
@@ -25,7 +25,6 @@ class MCObjectWriter;
 class MCSubtargetInfo;
 class Target;
 class StringRef;
-class formatted_raw_ostream;
 class raw_ostream;
 
 extern Target TheMBlazeTarget;
diff --git a/lib/Target/MSP430/MCTargetDesc/MSP430MCTargetDesc.h b/lib/Target/MSP430/MCTargetDesc/MSP430MCTargetDesc.h
index 35f25907644..7f3505ca551 100644
--- a/lib/Target/MSP430/MCTargetDesc/MSP430MCTargetDesc.h
+++ b/lib/Target/MSP430/MCTargetDesc/MSP430MCTargetDesc.h
@@ -15,9 +15,7 @@
 #define MSP430MCTARGETDESC_H
 
 namespace llvm {
-class MCSubtargetInfo;
 class Target;
-class StringRef;
 
 extern Target TheMSP430Target;
 
diff --git a/lib/Target/PTX/MCTargetDesc/PTXMCTargetDesc.h b/lib/Target/PTX/MCTargetDesc/PTXMCTargetDesc.h
index 1003b0b5ece..542638ace13 100644
--- a/lib/Target/PTX/MCTargetDesc/PTXMCTargetDesc.h
+++ b/lib/Target/PTX/MCTargetDesc/PTXMCTargetDesc.h
@@ -15,9 +15,7 @@
 #define PTXMCTARGETDESC_H
 
 namespace llvm {
-class MCSubtargetInfo;
 class Target;
-class StringRef;
 
 extern Target ThePTX32Target;
 extern Target ThePTX64Target;
diff --git a/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.h b/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.h
index 2fd9e3f4cbd..cba775adb1a 100644
--- a/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.h
+++ b/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.h
@@ -15,9 +15,7 @@
 #define SPARCMCTARGETDESC_H
 
 namespace llvm {
-class MCSubtargetInfo;
 class Target;
-class StringRef;
 
 extern Target TheSparcTarget;
 extern Target TheSparcV9Target;
diff --git a/lib/Target/XCore/MCTargetDesc/XCoreMCTargetDesc.h b/lib/Target/XCore/MCTargetDesc/XCoreMCTargetDesc.h
index 3cfc3764a62..a255adb2e0f 100644
--- a/lib/Target/XCore/MCTargetDesc/XCoreMCTargetDesc.h
+++ b/lib/Target/XCore/MCTargetDesc/XCoreMCTargetDesc.h
@@ -15,9 +15,7 @@
 #define XCOREMCTARGETDESC_H
 
 namespace llvm {
-class MCSubtargetInfo;
 class Target;
-class StringRef;
 
 extern Target TheXCoreTarget;