Remove dead constant time code (#5239)

1 files changed, 0 insertions, 22 deletions

diff --git a/src/_cffi_src/hazmat_src/constant_time.c b/src/_cffi_src/hazmat_src/constant_time.c
deleted file mode 100644
index 0a48fe83..00000000
--- a/src/_cffi_src/hazmat_src/constant_time.c
+++ /dev/null
@@ -1,22 +0,0 @@
-// This file is dual licensed under the terms of the Apache License, Version
-// 2.0, and the BSD License. See the LICENSE file in the root of this
-// repository for complete details.
-
-uint8_t Cryptography_constant_time_bytes_eq(uint8_t *a, size_t len_a,
-                                            uint8_t *b, size_t len_b) {
-    size_t i = 0;
-    uint8_t mismatch = 0;
-    if (len_a != len_b) {
-        return 0;
-    }
-    for (i = 0; i < len_a; i++) {
-        mismatch |= a[i] ^ b[i];
-    }
-
-    /* Make sure any bits set are copied to the lowest bit */
-    mismatch |= mismatch >> 4;
-    mismatch |= mismatch >> 2;
-    mismatch |= mismatch >> 1;
-    /* Now check the low bit to see if it's set */
-    return (mismatch & 1) == 0;
-}