Remove some unused, misplaced, or ancient code.

external/glslang

@@ -1 +1 @@
-Subproject commit 6d41bb9c557c5a0eec61ffba1f775dc5f717a8f7
+Subproject commit 9c7fd1a33e5cecbe465e1cd70170167d5e40d398

port.h

@@ -111,9 +111,6 @@ typedef size_t				pint;
 #define FALSE	0
 #endif
 
-#define START_EXTERN_C	extern "C" {
-#define END_EXTERN_C	}
-
 #ifndef __WIN32__
 #ifndef PATH_MAX
 #define PATH_MAX        1024
@@ -150,15 +147,6 @@ void SetInfoDlgColor(unsigned char, unsigned char, unsigned char);
 #define SLASH_CHAR	'/'
 #endif
 
-#ifndef SIG_PF
-#define SIG_PF	void (*) (int)
-#endif
-
-#ifdef __linux
-#define TITLE "Snes9x: Linux"
-#define SYS_CONFIG_FILE "/etc/snes9x/snes9x.conf"
-#endif
-
 #ifndef TITLE
 #define TITLE "Snes9x"
 #endif

snes9x.cpp

@@ -171,11 +171,6 @@ void S9xLoadConfigFiles (char **argv, int argc)
 
 	if (!skip)
 	{
-	#ifdef SYS_CONFIG_FILE
-		try_load_config_file(SYS_CONFIG_FILE, conf);
-		S9xParsePortConfig(conf, 0);
-	#endif
-
 		std::string	fname;
 
 		fname = S9xGetDirectory(DEFAULT_DIR);

win32/render.cpp

@@ -76,9 +76,7 @@ uint8 *ChangeLog [3] = {
     ChangeLog1, ChangeLog2, ChangeLog3
 };
 
-START_EXTERN_C
 uint8 snes9x_clear_change_log = 0;
-END_EXTERN_C
 
 enum BlarggMode {
     UNINITIALIZED,