base64: don't compile base64_encode() function

We don't use this anywhere; "comment" it out so we still remain
relatively close to the upstream sources.

Signed-off-by: Dan McGee <dan@archlinux.org>

lib/libalpm/base64.c

@@ -62,6 +62,7 @@ static const unsigned char base64_dec_map[128] =
      49,  50,  51, 127, 127, 127, 127, 127
 };
 
+#if 0
 /*
  * Encode a buffer into base64 format
  */
@@ -124,6 +125,7 @@ int base64_encode( unsigned char *dst, size_t *dlen,
 
     return( 0 );
 }
+#endif
 
 /*
  * Decode a base64-formatted buffer

lib/libalpm/base64.h

@@ -30,6 +30,7 @@
 #define POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL               -0x0010  /**< Output buffer too small. */
 #define POLARSSL_ERR_BASE64_INVALID_CHARACTER              -0x0012  /**< Invalid character in input. */
 
+#if 0
 /**
  * \brief          Encode a buffer into base64 format
  *
@@ -47,6 +48,7 @@
  */
 int base64_encode( unsigned char *dst, size_t *dlen,
                    const unsigned char *src, size_t slen );
+#endif
 
 /**
  * \brief          Decode a base64-formatted buffer