CryptoPkg/BaseCryptLib: Retire ARC4 algorithm

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1898

ARC4 is not secure any longer.
Remove the ARC4 support from edk2.
Change the ARC4 field name in EDKII_CRYPTO_PROTOCOL to indicate the
function is unsupported any longer.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Xiaoyu Lu <xiaoyux.lu@intel.com>
Cc: Siyuan Fu <siyuan.fu@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Philippe Mathieu-Daude <philmd@redhat.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>

CryptoPkg/Library/BaseCryptLib/RuntimeCryptLib.inf

@@ -7,7 +7,7 @@
 #  buffer overflow or integer overflow.
 #
 #  Note: SHA-384 Digest functions, SHA-512 Digest functions,
-#  HMAC-MD5 functions, HMAC-SHA1/SHA256 functions, AES/TDES/ARC4 functions, RSA external
+#  HMAC-MD5 functions, HMAC-SHA1/SHA256 functions, AES/TDES functions, RSA external
 #  functions, PKCS#7 SignedData sign functions, Diffie-Hellman functions, and
 #  authenticode signature verification functions are not supported in this instance.
 #
@@ -46,7 +46,6 @@
   Kdf/CryptHkdfNull.c
   Cipher/CryptAesNull.c
   Cipher/CryptTdesNull.c
-  Cipher/CryptArc4Null.c
   Pk/CryptRsaBasic.c
   Pk/CryptRsaExtNull.c
   Pk/CryptPkcs1OaepNull.c