1 files changed, 1 insertions, 9 deletions
diff --git a/py/mpz.c b/py/mpz.c
index f5675a2917..d300a8e5db 100644
--- a/py/mpz.c
+++ b/py/mpz.c
@@ -1,5 +1,5 @@
 /*
- * This file is part of the Micro Python project, http://micropython.org/
+ * This file is part of the MicroPython project, http://micropython.org/
  *
  * The MIT License (MIT)
  *
@@ -939,10 +939,6 @@ void mpz_set_from_bytes(mpz_t *z, bool big_endian, size_t len, const byte *buf)
     z->len = mpn_remove_trailing_zeros(z->dig, z->dig + z->len);
 }
 
-bool mpz_is_zero(const mpz_t *z) {
-    return z->len == 0;
-}
-
 #if 0
 these functions are unused
 
@@ -950,10 +946,6 @@ bool mpz_is_pos(const mpz_t *z) {
     return z->len > 0 && z->neg == 0;
 }
 
-bool mpz_is_neg(const mpz_t *z) {
-    return z->len > 0 && z->neg != 0;
-}
-
 bool mpz_is_odd(const mpz_t *z) {
     return z->len > 0 && (z->dig[0] & 1) != 0;
 }