Change member description back to bytes.

The xcode function is actually from bytes -> asm/packet etc.
The RzBuffer is just the vehicle to provide the bytes.

librz/include/rz_arch.h

@@ -23,7 +23,7 @@ RZ_LIB_VERSION_HEADER(rz_arch);
 
 typedef enum {
 	RZ_ARCH_XCODE_MEMBER_INVALID = 0, ///< Invalid member
-	RZ_ARCH_XCODE_MEMBER_BUFFER, ///< Member is a RzBuffer
+	RZ_ARCH_XCODE_MEMBER_BYTES, ///< Member are bytes provided by a RzBuffer.
 	RZ_ARCH_XCODE_MEMBER_ASSEMBLY, ///< Member is assembly
 	RZ_ARCH_XCODE_MEMBER_PACKET, ///< Member is RzArchPacket
 	RZ_ARCH_XCODE_MEMBER_HINT, ///< Member is RzArchHint
@@ -34,8 +34,6 @@ typedef enum {
 	RZ_ARCH_XCODE_MEMBER_ESIL, ///< [Deprecated] Member is ESIL
 } RzArchXCodeMember;
 
-#define RZ_ARCH_BUFFER_SIZE 128
-
 typedef ut64 RzAddress;
 
 typedef struct rz_arch_xcode_t {