Fix bug in 11LOGO turtle graphics LEFT command.

No need to compute sign extension when using EAE, moving to MQ does
that automatically.  When a negative number was used as dividend, the
sign extension was accidentally complemented.

src/11logo/turtle.62

@@ -769,10 +769,8 @@ FIX:	ROL	C	;PUT TOP BIT OF C INTO CARRY
 ;	ALWAYS OUTPUTS A POSITIVE NUMBER
 MOD360:	MOV	#360.,C
 	MOV	#AC,A
-	CLR	(A)	;CLEAR HIGH PART OF DIVIDEND
 	MOV	B,2(A)	;MOVE NUMBER TO LOW PART OF DIVIDEND
 	BGE	M360A
-	COM	(A)	;EXTEND SIGN TO HIGH PART OF DIVIDEND
 M360A:	MOV	C,-(A)	;360 TO DIVISOR
 	MOV	2(A),B	;REMAINDER
 	BGE	M360R