cleanup some remaining dead refs

ed25519/amd64-51-30k/fe25519.h

@@ -17,7 +17,6 @@
 #define fe25519_add          CRYPTO_NAMESPACE(batch_fe25519_add)
 #define fe25519_sub          CRYPTO_NAMESPACE(batch_fe25519_sub)
 #define fe25519_mul          CRYPTO_NAMESPACE(batch_fe25519_mul)
-#define fe25519_mul121666    CRYPTO_NAMESPACE(batch_fe25519_mul121666)
 #define fe25519_square       CRYPTO_NAMESPACE(batch_fe25519_square)
 #define fe25519_nsquare       CRYPTO_NAMESPACE(batch_fe25519_nsquare)
 #define fe25519_invert       CRYPTO_NAMESPACE(batch_fe25519_invert)
@@ -56,8 +55,6 @@ void fe25519_sub(fe25519 *r, const fe25519 *x, const fe25519 *y);
 
 void fe25519_mul(fe25519 *r, const fe25519 *x, const fe25519 *y) SYSVABI;
 
-void fe25519_mul121666(fe25519 *r, const fe25519 *x);
-
 void fe25519_square(fe25519 *r, const fe25519 *x) SYSVABI;
 
 void fe25519_nsquare(fe25519 *r, unsigned long long n) SYSVABI;

ed25519/ed25519_impl_post.h

@@ -54,7 +54,6 @@
 #undef ge25519_add_p1p1
 #undef ge25519_dbl_p1p1
 #undef choose_t
-#undef choose_t_smultq
 #undef ge25519_nielsadd2
 #undef ge25519_nielsadd_p1p1
 #undef ge25519_pnielsadd_p1p1

ed25519/ref10/fe.h

@@ -29,7 +29,6 @@ Bounds on each t[i] vary depending on context.
 #define fe_mul CRYPTO_NAMESPACE(fe_mul)
 #define fe_sq CRYPTO_NAMESPACE(fe_sq)
 #define fe_sq2 CRYPTO_NAMESPACE(fe_sq2)
-#define fe_mul121666 CRYPTO_NAMESPACE(fe_mul121666)
 #define fe_invert CRYPTO_NAMESPACE(fe_invert)
 #define fe_batchinvert CRYPTO_NAMESPACE(fe_batchinvert)
 #define fe_pow22523 CRYPTO_NAMESPACE(fe_pow22523)
@@ -51,7 +50,6 @@ extern void fe_neg(fe,const fe);
 extern void fe_mul(fe,const fe,const fe);
 extern void fe_sq(fe,const fe);
 extern void fe_sq2(fe,const fe);
-extern void fe_mul121666(fe,const fe);
 extern void fe_invert(fe,const fe);
 extern void fe_batchinvert(fe *out,fe *in,fe *tmp,size_t num,size_t shift);
 extern void fe_pow22523(fe,const fe);