diff --git a/dive.h b/dive.h
index 78d91f066..a6dd0e5b6 100644
--- a/dive.h
+++ b/dive.h
@@ -700,13 +700,7 @@ const char *monthname(int mon);
 #define FIVE_STARS	UTF8_BLACKSTAR UTF8_BLACKSTAR UTF8_BLACKSTAR UTF8_BLACKSTAR UTF8_BLACKSTAR
 extern const char *star_strings[];
 
-/* enum holding list of OS features */
-typedef enum {
-	UTF8_FONT_WITH_STARS
-} os_feature_t;
-
 extern const char *existing_filename;
-extern bool subsurface_os_feature_available(os_feature_t);
 extern void subsurface_command_line_init(int *, char ***);
 extern void subsurface_command_line_exit(int *, char ***);
 
diff --git a/linux.c b/linux.c
index 159e02d6a..2cee87689 100644
--- a/linux.c
+++ b/linux.c
@@ -33,11 +33,6 @@ void subsurface_command_line_exit(int *argc, char ***argv)
 	/* this is a no-op */
 }
 
-bool subsurface_os_feature_available(os_feature_t f)
-{
-	return TRUE;
-}
-
 int enumerate_devices (device_callback_t callback, void *userdata)
 {
 	int index = -1;
diff --git a/macos.c b/macos.c
index ac5faf0e8..d1b3bbedd 100644
--- a/macos.c
+++ b/macos.c
@@ -48,11 +48,6 @@ void subsurface_command_line_exit(int *argc, char ***argv)
 	/* this is a no-op */
 }
 
-bool subsurface_os_feature_available(os_feature_t f)
-{
-	return TRUE;
-}
-
 int enumerate_devices (device_callback_t callback, void *userdata)
 {
 	int index = -1;
diff --git a/windows.c b/windows.c
index cd1acf368..0c117746d 100644
--- a/windows.c
+++ b/windows.c
@@ -89,21 +89,6 @@ void subsurface_command_line_exit(int *argc, char ***argv)
 	free(*argv);
 }
 
-/* check if we are running a newer OS version */
-bool subsurface_os_feature_available(os_feature_t f)
-{
-	switch (f) {
-	case UTF8_FONT_WITH_STARS:
-		if ((GetVersion() & 0xff) < 6)
-			return FALSE; /* version less than Vista */
-		else
-			return TRUE;
-		break;
-	default:
-		return TRUE;
-	}
-}
-
 int enumerate_devices (device_callback_t callback, void *userdata)
 {
 	// Open the registry key.