[config] Remove vestigial LLVM_VERSION_INFO

This has been superseded by the llvm/Support/VCSRevision.h header. So
far as I can tell, nothing in the CMake build sets LLVM_VERSION_INFO. It
was always undefined, and the ifdefs using it were dead. However, CMake
is very flexible, so it's possible that I missed some ways to set this
variable. One could, for example, probably pass -DLLVM_VERSION_INFO=x on
the command line and get that through to configure_file, or set the
variable in an obscure way (`set(${proj}_VERSION_INFO "x")`). I'm
reasonably confident that isn't happening, but I'd like a second
opinion.

Update the Bazel and gn builds accordingly.

Differential Revision: https://reviews.llvm.org/D126977

1 files changed, 1 insertions, 5 deletions

diff --git a/llvm/lib/Support/CommandLine.cpp b/llvm/lib/Support/CommandLine.cpp
index 3e5fff9..742e245 100644
--- a/llvm/lib/Support/CommandLine.cpp
+++ b/llvm/lib/Support/CommandLine.cpp
@@ -2468,11 +2468,7 @@ public:
 #else
     OS << "LLVM (http://llvm.org/):\n  ";
 #endif
-    OS << PACKAGE_NAME << " version " << PACKAGE_VERSION;
-#ifdef LLVM_VERSION_INFO
-    OS << " " << LLVM_VERSION_INFO;
-#endif
-    OS << "\n  ";
+    OS << PACKAGE_NAME << " version " << PACKAGE_VERSION << "\n  ";
 #if LLVM_IS_DEBUG_BUILD
     OS << "DEBUG build";
 #else