[clangd] Fix remote-server build and add it to check-clangd

Differential Revision: https://reviews.llvm.org/D90047

clang-tools-extra/clangd/index/remote/server/Server.cpp

@@ -33,8 +33,6 @@
 #include <memory>
 #include <thread>
 
-#include "Index.grpc.pb.h"
-
 namespace clang {
 namespace clangd {
 namespace remote {

clang-tools-extra/clangd/test/CMakeLists.txt

@@ -21,6 +21,10 @@ if(CLANGD_BUILD_XPC)
   list(APPEND CLANGD_TEST_DEPS ClangdXpcUnitTests)
 endif()
 
+if(CLANGD_ENABLE_REMOTE)
+  list(APPEND CLANGD_TEST_DEPS clangd-index-server)
+endif()
+
 foreach(dep FileCheck count not llvm-config)
   if(TARGET ${dep})
     list(APPEND CLANGD_TEST_DEPS ${dep})