Some cleanups + we don't need a non-libretro codepath

src/ppu.c

@@ -32,7 +32,6 @@
 #include        "general.h"
 #include        "fceu-endian.h"
 #include        "fceu-memory.h"
-#include        "ppuview.h"
 
 #include        "cart.h"
 #include        "palette.h"
@@ -1241,7 +1240,6 @@ int FCEUPPU_Loop(int skip) {
 
 			for (scanline = 0; scanline < totalscanlines; ) {	/* scanline is incremented in  DoLine.  Evil. :/ */
 				deempcnt[deemp]++;
-				/* if ((PPUViewer) && (scanline == PPUViewScanline)) UpdatePPUView(1); */
 				DoLine();
 				if (scanline < normal_scanlines || scanline == totalscanlines)
 					overclocked = 0;