remove old joystick code

libsrc/creativision/joy.s

@@ -1,58 +0,0 @@
-;*
-;* Creativision Joystick Function
-;*
-;* unsigned char __fastcall__ joystate(unsigned char joy);
-;*
-;* JOY_1 -> Return Left Joystick direction
-;* JOY_2 -> Return Right Joystick direction
-;* JOY_3 -> Return Left Joystick buttons
-;* JOY_4 -> Return Right Joystick buttons
-;*
-;* Will only work if interrupts are enabled.
-
-        .export         _joystate
-        .include        "creativision.inc"
-
-_joystate:
-        cmp             #1      ; Left Direction
-        bne             l1
-
-        lda             $11
-        beq             l5
-        and             #$0F
-        lsr             a
-        tax
-        inx
-        txa
-        rts
-
-l1:     cmp             #2      ; Right Direction
-        bne             l2
-
-        lda             $13
-        beq             l5
-        and             #$0F
-        lsr             a
-        tax
-        inx
-        txa
-        rts
-
-l2:     cmp             #3      ; Left Buttons
-        bne             l3
-
-        lda             $16
-        beq             l5
-        and             #$0F
-        rts
-
-l3:     cmp             #4
-        bne             l4
-
-        lda             $17
-        beq             l5
-        and             #$0F
-        rts
-
-l4:     lda             #0
-l5:     rts