Fix collateral damage from merging

Author: npaun

include/ncrypto.h

@@ -1437,15 +1437,6 @@ class EVPMDCtxPointer final {
       const Digest& digest,
       const Buffer<const unsigned char>& context_string);
 
-  std::optional<EVP_PKEY_CTX*> signInitWithContext(
-      const EVPKeyPointer& key,
-      const Digest& digest,
-      const Buffer<const unsigned char>& context_string);
-  std::optional<EVP_PKEY_CTX*> verifyInitWithContext(
-      const EVPKeyPointer& key,
-      const Digest& digest,
-      const Buffer<const unsigned char>& context_string);
-
   DataPointer signOneShot(const Buffer<const unsigned char>& buf) const;
   DataPointer sign(const Buffer<const unsigned char>& buf) const;
   bool verify(const Buffer<const unsigned char>& buf,