[Driver][NFC] Remove identifier with the comment

MaskRay suggested removal of the identifer in a review for another
ToolChain so doing the same for the rest.

Author: brad0

clang/lib/Driver/ToolChains/AIX.h

@@ -16,7 +16,7 @@ namespace clang {
 namespace driver {
 namespace tools {
 
-/// aix -- Directly call system default assembler and linker.
+/// Directly call system default assembler and linker.
 namespace aix {
 
 class LLVM_LIBRARY_VISIBILITY Assembler : public Tool {

clang/lib/Driver/ToolChains/DragonFly.h

@@ -16,7 +16,8 @@
 namespace clang {
 namespace driver {
 namespace tools {
-/// dragonfly -- Directly call GNU Binutils assembler and linker
+
+/// Directly call GNU Binutils assembler and linker
 namespace dragonfly {
 class LLVM_LIBRARY_VISIBILITY Assembler : public Tool {
 public:

clang/lib/Driver/ToolChains/FreeBSD.h

@@ -17,7 +17,7 @@ namespace clang {
 namespace driver {
 namespace tools {
 
-/// freebsd -- Directly call GNU Binutils assembler and linker
+/// Directly call GNU Binutils assembler and linker
 namespace freebsd {
 class LLVM_LIBRARY_VISIBILITY Assembler : public Tool {
 public:

clang/lib/Driver/ToolChains/MinGW.h

@@ -20,7 +20,7 @@ namespace clang {
 namespace driver {
 namespace tools {
 
-/// MinGW -- Directly call GNU Binutils assembler and linker
+/// Directly call GNU Binutils assembler and linker
 namespace MinGW {
 class LLVM_LIBRARY_VISIBILITY Assembler : public Tool {
 public:

clang/lib/Driver/ToolChains/NetBSD.h

@@ -17,7 +17,7 @@ namespace clang {
 namespace driver {
 namespace tools {
 
-/// netbsd -- Directly call GNU Binutils assembler and linker
+/// Directly call GNU Binutils assembler and linker
 namespace netbsd {
 class LLVM_LIBRARY_VISIBILITY Assembler : public Tool {
 public:

clang/lib/Driver/ToolChains/OpenBSD.h

@@ -18,7 +18,7 @@ namespace clang {
 namespace driver {
 namespace tools {
 
-/// openbsd -- Directly call GNU Binutils assembler and linker
+/// Directly call GNU Binutils assembler and linker
 namespace openbsd {
 class LLVM_LIBRARY_VISIBILITY Assembler : public Tool {
 public:

clang/lib/Driver/ToolChains/Solaris.h

@@ -17,7 +17,7 @@ namespace clang {
 namespace driver {
 namespace tools {
 
-/// solaris -- Directly call Solaris assembler and linker
+/// Directly call Solaris assembler and linker
 namespace solaris {
 class LLVM_LIBRARY_VISIBILITY Assembler : public gnutools::Assembler {
 public:

clang/lib/Driver/ToolChains/ZOS.h

@@ -16,7 +16,7 @@ namespace clang {
 namespace driver {
 namespace tools {
 
-/// zos -- Directly call system default assembler and linker.
+/// Directly call system default assembler and linker.
 namespace zos {
 
 class LLVM_LIBRARY_VISIBILITY Assembler : public Tool {