avcodec/x86/constants: Remove unused ff_pw_17

Unused since 80944df7.
Signed-off-by: NAndreas Rheinhardt <andreas.rheinhardt@gmail.com>

libavcodec/x86/constants.c

@@ -34,7 +34,6 @@ DECLARE_ALIGNED(16, const xmm_reg,  ff_pw_8)    = { 0x0008000800080008ULL, 0x000
 DECLARE_ASM_ALIGNED(16, const xmm_reg,  ff_pw_9)    = { 0x0009000900090009ULL, 0x0009000900090009ULL };
 DECLARE_ALIGNED(8,  const uint64_t, ff_pw_15)   =   0x000F000F000F000FULL;
 DECLARE_ALIGNED(16, const xmm_reg,  ff_pw_16)   = { 0x0010001000100010ULL, 0x0010001000100010ULL };
-DECLARE_ALIGNED(16, const xmm_reg,  ff_pw_17)   = { 0x0011001100110011ULL, 0x0011001100110011ULL };
 DECLARE_ASM_ALIGNED(16, const xmm_reg,  ff_pw_18)   = { 0x0012001200120012ULL, 0x0012001200120012ULL };
 DECLARE_ALIGNED(16, const xmm_reg,  ff_pw_20)   = { 0x0014001400140014ULL, 0x0014001400140014ULL };
 DECLARE_ALIGNED(16, const xmm_reg,  ff_pw_32)   = { 0x0020002000200020ULL, 0x0020002000200020ULL };

libavcodec/x86/h264_intrapred.asm

@@ -42,11 +42,7 @@ SECTION .text
 cextern pb_1
 cextern pb_3
 cextern pw_4
-cextern pw_5
 cextern pw_8
-cextern pw_16
-cextern pw_17
-cextern pw_32
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred16x16_vertical_8(uint8_t *src, ptrdiff_t stride)