runtime: unify fastrand1 and fastrand2
C and Go calling conventions are now compatible, so we
don't need two versions of this function.
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/139080043
diff --git a/src/pkg/runtime/asm_386.s b/src/pkg/runtime/asm_386.s
index 35805d6..681a1b6 100644
--- a/src/pkg/runtime/asm_386.s
+++ b/src/pkg/runtime/asm_386.s
@@ -2283,7 +2283,7 @@
TEXT runtime·timenow(SB), NOSPLIT, $0-0
JMP time·now(SB)
-TEXT runtime·fastrand2(SB), NOSPLIT, $0-4
+TEXT runtime·fastrand1(SB), NOSPLIT, $0-4
get_tls(CX)
MOVL g(CX), AX
MOVL g_m(AX), AX
