diff --git a/clang-tools-extra/clangd/index/YAMLSerialization.cpp b/clang-tools-extra/clangd/index/YAMLSerialization.cpp
--- a/clang-tools-extra/clangd/index/YAMLSerialization.cpp
+++ b/clang-tools-extra/clangd/index/YAMLSerialization.cpp
@@ -73,7 +73,6 @@
 using clang::index::SymbolInfo;
 using clang::index::SymbolKind;
 using clang::index::SymbolLanguage;
-using clang::index::SymbolRole;
 using clang::tooling::CompileCommand;
 
 // Helper to (de)serialize the SymbolID. We serialize it as a hex string.
diff --git a/clang-tools-extra/clangd/unittests/ClangdTests.cpp b/clang-tools-extra/clangd/unittests/ClangdTests.cpp
--- a/clang-tools-extra/clangd/unittests/ClangdTests.cpp
+++ b/clang-tools-extra/clangd/unittests/ClangdTests.cpp
@@ -54,10 +54,8 @@
 namespace {
 
 using ::testing::AllOf;
-using ::testing::Contains;
 using ::testing::ElementsAre;
 using ::testing::Field;
-using ::testing::Gt;
 using ::testing::IsEmpty;
 using ::testing::Pair;
 using ::testing::SizeIs;
diff --git a/clang-tools-extra/clangd/unittests/GlobalCompilationDatabaseTests.cpp b/clang-tools-extra/clangd/unittests/GlobalCompilationDatabaseTests.cpp
--- a/clang-tools-extra/clangd/unittests/GlobalCompilationDatabaseTests.cpp
+++ b/clang-tools-extra/clangd/unittests/GlobalCompilationDatabaseTests.cpp
@@ -40,7 +40,6 @@
 using ::testing::HasSubstr;
 using ::testing::IsEmpty;
 using ::testing::Not;
-using ::testing::StartsWith;
 using ::testing::UnorderedElementsAre;
 
 TEST(GlobalCompilationDatabaseTest, FallbackCommand) {
diff --git a/clang-tools-extra/clangd/unittests/HeadersTests.cpp b/clang-tools-extra/clangd/unittests/HeadersTests.cpp
--- a/clang-tools-extra/clangd/unittests/HeadersTests.cpp
+++ b/clang-tools-extra/clangd/unittests/HeadersTests.cpp
@@ -33,7 +33,6 @@
 using ::testing::IsEmpty;
 using ::testing::Not;
 using ::testing::UnorderedElementsAre;
-using ::testing::UnorderedElementsAreArray;
 
 class HeadersTest : public ::testing::Test {
 public:
diff --git a/clang-tools-extra/clangd/unittests/IndexTests.cpp b/clang-tools-extra/clangd/unittests/IndexTests.cpp
--- a/clang-tools-extra/clangd/unittests/IndexTests.cpp
+++ b/clang-tools-extra/clangd/unittests/IndexTests.cpp
@@ -22,7 +22,6 @@
 
 using ::testing::_;
 using ::testing::AllOf;
-using ::testing::AnyOf;
 using ::testing::ElementsAre;
 using ::testing::IsEmpty;
 using ::testing::Pair;
diff --git a/clang-tools-extra/clangd/unittests/RIFFTests.cpp b/clang-tools-extra/clangd/unittests/RIFFTests.cpp
--- a/clang-tools-extra/clangd/unittests/RIFFTests.cpp
+++ b/clang-tools-extra/clangd/unittests/RIFFTests.cpp
@@ -13,7 +13,6 @@
 namespace clang {
 namespace clangd {
 namespace {
-using ::testing::ElementsAre;
 
 TEST(RIFFTest, File) {
   riff::File File{riff::fourCC("test"),