[bazel] Undo LSP changes after revert (llvm#157691)

Reverted in 31bee34

Author: rupprecht

utils/bazel/llvm-project-overlay/llvm/BUILD.bazel

@@ -228,7 +228,6 @@ cc_library(
         "lib/Support/*.cpp",
         "lib/Support/*.h",
         "lib/Support/*.inc",
-        "lib/Support/LSP/*.cpp",
         # To avoid a dependency cycle.
         "include/llvm/Option/*.h",
     ]) + select({

utils/bazel/llvm-project-overlay/llvm/unittests/BUILD.bazel

@@ -793,23 +793,6 @@ cc_test(
     ],
 )
 
-cc_test(
-    name = "SupportLSPTests",
-    size = "small",
-    srcs = glob(["Support/LSP/*.cpp"]),
-    copts = [
-        "$(STACK_FRAME_UNLIMITED)",
-    ],
-    linkstatic = 1,
-    deps = [
-        "//llvm:Support",
-        "//llvm:config",
-        "//third-party/unittest:gmock",
-        "//third-party/unittest:gtest",
-        "//third-party/unittest:gtest_main",
-    ],
-)
-
 cc_test(
     name = "tablegen_tests",
     size = "small",