[lldb] Remove a stray semicolon, fixing GCC warnings. NFC.

GitOrigin-RevId: 11e74e512d64ae2a2531156b6f0dde211b1ae19d
diff --git a/tools/lldb-vscode/FifoFiles.cpp b/tools/lldb-vscode/FifoFiles.cpp
index 0a36c87..d56f880 100644
--- a/tools/lldb-vscode/FifoFiles.cpp
+++ b/tools/lldb-vscode/FifoFiles.cpp
@@ -33,7 +33,7 @@
 #if LLVM_ON_UNIX
   unlink(m_path.c_str());
 #endif
-};
+}
 
 Expected<std::shared_ptr<FifoFile>> CreateFifoFile(StringRef path) {
 #if !LLVM_ON_UNIX