Remove use of GOTPCREL in asm.

Now that symbol visibility is done correctly, this shouldn't be needed.

Change-Id: I608beed1de63c1309358ff17dd28e3191e87dbd4
Reviewed-on: https://boringssl-review.googlesource.com/1810
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>

crypto/rc4/asm/rc4-x86_64.pl

diff --git a/crypto/rc4/asm/rc4-x86_64.pl b/crypto/rc4/asm/rc4-x86_64.pl
index c033a41..2c52ac0 100644
--- a/crypto/rc4/asm/rc4-x86_64.pl
+++ b/crypto/rc4/asm/rc4-x86_64.pl
@@ -159,8 +159,7 @@
 	mov	-4($dat),$YY#b
 	cmpl	\$-1,256($dat)
 	je	.LRC4_CHAR
-	mov	OPENSSL_ia32cap_P\@GOTPCREL(%rip),%r8
-	mov	(%r8),%r8d
+	mov	OPENSSL_ia32cap_P(%rip),%r8d
 	xor	$TX[1],$TX[1]
 	inc	$XX[0]#b
 	sub	$XX[0],$TX[1]
@@ -445,8 +444,7 @@
 	xor	%r10,%r10
 	xor	%r11,%r11
 
-	mov	OPENSSL_ia32cap_P\@GOTPCREL(%rip),$idx
-	mov	($idx),$idx#d
+	mov	OPENSSL_ia32cap_P(%rip),$idx#d
 	bt	\$20,$idx#d	# RC4_CHAR?
 	jc	.Lc1stloop
 	jmp	.Lw1stloop