Remove extraneous brackets, add comment to self.

Components/9918/Implementation/9918.cpp

@@ -301,7 +301,7 @@ void TMS9918<personality>::run_for(const HalfCycles cycles) {
 				}
 
 				const bool is_refresh =
-					(this->screen_mode_ == ScreenMode::Blank) ||
+					this->screen_mode_ == ScreenMode::Blank ||
 					this->is_vertical_blank();
 
 				// TODO: an actual sprites-enabled flag.

Components/9918/Implementation/9918Base.hpp

@@ -86,7 +86,7 @@ struct LineBuffer {
 		// this struct captures maximal potential detail there.
 		struct {
 			struct {
-				size_t offset = 0;
+				size_t offset = 0;	// TODO: could presumably be much smaller. One byte maybe?
 				uint8_t flags = 0;
 			} names[40];