common/logging: don't use regex for path trimming

src/common/logging/backend.cpp

@@ -115,15 +115,12 @@ private:
         using std::chrono::duration_cast;
         using std::chrono::steady_clock;
 
-        // matches from the beginning up to the last '../' or 'src/'
-        static const std::regex trim_source_path(R"(.*([\/\\]|^)((\.\.)|(src))[\/\\])");
-
         Entry entry;
         entry.timestamp =
             duration_cast<std::chrono::microseconds>(steady_clock::now() - time_origin);
         entry.log_class = log_class;
         entry.log_level = log_level;
-        entry.filename = std::regex_replace(filename, trim_source_path, "");
+        entry.filename = filename;
         entry.line_num = line_nr;
         entry.function = function;
         entry.message = std::move(message);