Revert "very experimental head align tool"

This reverts commit 7227370907.

c64/kernal/tape/tape_common.s

@@ -34,6 +34,25 @@ tape_break_error:
 	jmp kernalerror_ROUTINE_TERMINATED
 
 
+//
+// Handle tape deck motor
+//
+
+tape_motor_off:
+
+	lda CPU_R6510
+	ora #$20
+	bne !+                             // branch always
+
+tape_motor_on:
+
+	lda CPU_R6510
+	and #($FF - $20)
+!:
+	sta CPU_R6510 
+	rts
+
+
 //
 // Handle screen (visible/blanked) + tape deck motor (on/off),
 // store/restore screen color