test: Remove redundant 0-byte decryption test

Patater · Patater · commit b01314683a5c · 2019-06-07T12:57:33.000+01:00
Remove the "Decrypt empty buffer" test, as ChaCha20 is a stream cipher
and 0 bytes encrypted is identical to a 0 length buffer. The "ChaCha20
Encrypt and decrypt 0 bytes" test will test decryption of a 0 length
buffer.
diff --git a/tests/suites/test_suite_cipher.chacha20.data b/tests/suites/test_suite_cipher.chacha20.data
@@ -1,7 +1,3 @@
-Decrypt empty buffer
-depends_on:MBEDTLS_CHACHA20_C
-dec_empty_buf:MBEDTLS_CIPHER_CHACHA20
-
 Chacha20 RFC 7539 Test Vector #1
 depends_on:MBEDTLS_CHACHA20_C
 decrypt_test_vec:MBEDTLS_CIPHER_CHACHA20:-1:"0000000000000000000000000000000000000000000000000000000000000000":"000000000000000000000000":"76b8e0ada0f13d90405d6ae55386bd28bdd219b8a08ded1aa836efcc8b770dc7da41597c5157488d7724e03fb8d84a376a43b8f41518a11cc387b669b2ee6586":"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000":"":"":0:0
