[LLDB] Applying clang-tidy modernize-use-equals-default over LLDB

Applied modernize-use-equals-default clang-tidy check over LLDB.

This check is already present in the lldb/.clang-tidy config.

Differential Revision: https://reviews.llvm.org/D121844

lldb/source/Commands/CommandObjectLog.cpp

@@ -75,7 +75,7 @@ public:
 
   class CommandOptions : public Options {
   public:
-    CommandOptions() {}
+    CommandOptions() = default;
 
     ~CommandOptions() override = default;