Revert "Arm32 dynamic function dispatch"

This reverts commit ce4ff9c44de8213a55c3712da17c5eab8f1247bc.

Reason for revert: broke master in ab/5138164 target sdk_phone_armv7-sdk

Change-Id: Ia4b0c7e6117a37df694509078116963f41d7865e
diff --git a/libc/arch-arm/generic/bionic/strlen.c b/libc/arch-arm/generic/bionic/strlen.c
index 43d9e51..44bd72f 100644
--- a/libc/arch-arm/generic/bionic/strlen.c
+++ b/libc/arch-arm/generic/bionic/strlen.c
@@ -29,7 +29,7 @@
 #include <string.h>
 #include <stdint.h>
 
-size_t strlen_generic(const char *s)
+size_t strlen(const char *s)
 {
     __builtin_prefetch(s);
     __builtin_prefetch(s+32);