[OpenMP] Fixing llvm-omp-device-info compilation with runtimes

When using `-DLLVM_ENABLED_RUNTIMES` instead of `-DLLVM_ENABLED_PROJECTS`
the `llvm-omp-device-info` tool is not compiled or installed.
In general, no llvm tool would be build on runtimes, because the
-DLLVM_BUILD_TOOLS flag is removed by the way runtimes compilation calls
cmake again.

This patch is simple. Just forward the value of this flag to the
runtime cmake command.

I'm also removing an unnecessary comment in the compilation of the tool

Differential Revision: https://reviews.llvm.org/D107177

(cherry picked from commit 5424ceeda0534ab382e2a6cb192099f76ee8b12c)
diff --git a/llvm/runtimes/CMakeLists.txt b/llvm/runtimes/CMakeLists.txt
index 6ae087e..2786aa4 100644
--- a/llvm/runtimes/CMakeLists.txt
+++ b/llvm/runtimes/CMakeLists.txt
@@ -232,6 +232,7 @@
                                       -DLLVM_DEFAULT_TARGET_TRIPLE=${TARGET_TRIPLE}
                                       -DLLVM_ENABLE_PROJECTS_USED=${LLVM_ENABLE_PROJECTS_USED}
                                       -DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=${LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default}
+                                      -DLLVM_BUILD_TOOLS=${LLVM_BUILD_TOOLS}
                                       -DCMAKE_C_COMPILER_WORKS=ON
                                       -DCMAKE_CXX_COMPILER_WORKS=ON
                                       -DCMAKE_ASM_COMPILER_WORKS=ON
diff --git a/openmp/libomptarget/tools/deviceinfo/CMakeLists.txt b/openmp/libomptarget/tools/deviceinfo/CMakeLists.txt
index dab61cf..4073ad9 100644
--- a/openmp/libomptarget/tools/deviceinfo/CMakeLists.txt
+++ b/openmp/libomptarget/tools/deviceinfo/CMakeLists.txt
@@ -11,7 +11,6 @@
 ##===----------------------------------------------------------------------===##
 
 libomptarget_say("Building the llvm-omp-device-info tool")
-libomptarget_say("llvm-omp-device-info using plugins ${LIBOMPTARGET_TESTED_PLUGINS}")
 
 add_llvm_tool(llvm-omp-device-info llvm-omp-device-info.cpp)