rgb2rgb: remove unused bgr8torgb8()

RGB8 and BGR8 are paletted formats now.

libswscale/rgb2rgb.c

@@ -295,21 +295,6 @@ void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size)
     }
 }
 
-void bgr8torgb8(const uint8_t *src, uint8_t *dst, int src_size)
-{
-    int i;
-    int num_pixels = src_size;
-    for (i=0; i<num_pixels; i++) {
-        unsigned b,g,r;
-        register uint8_t rgb;
-        rgb = src[i];
-        r = (rgb&0x07);
-        g = (rgb&0x38)>>3;
-        b = (rgb&0xC0)>>6;
-        dst[i] = ((b<<1)&0x07) | ((g&0x07)<<3) | ((r&0x03)<<6);
-    }
-}
-
 #define DEFINE_SHUFFLE_BYTES(a, b, c, d)                                \
 void shuffle_bytes_##a##b##c##d(const uint8_t *src, uint8_t *dst, int src_size) \
 {                                                                       \

libswscale/rgb2rgb.h

@@ -63,7 +63,6 @@ void    rgb15to24(const uint8_t *src, uint8_t *dst, int src_size);
 void rgb15tobgr16(const uint8_t *src, uint8_t *dst, int src_size);
 void rgb15tobgr15(const uint8_t *src, uint8_t *dst, int src_size);
 void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size);
-void   bgr8torgb8(const uint8_t *src, uint8_t *dst, int src_size);
 
 void shuffle_bytes_0321(const uint8_t *src, uint8_t *dst, int src_size);
 void shuffle_bytes_1230(const uint8_t *src, uint8_t *dst, int src_size);