[CIFS] Remove unused prototypes

void SMBencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24);

void E_md4hash(const unsigned char *passwd, unsigned char *p16);

void nt_lm_owf_gen(char *pwd, unsigned char nt_p16[16], unsigned char p16[16]);

static void SMBOWFencrypt(unsigned char passwd[16], unsigned char *c8,

		   unsigned char p24[24]);

void NTLMSSPOWFencrypt(unsigned char passwd[8],

		       unsigned char *ntlmchalresp, unsigned char p24[24]);

void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24);

/*