sparc32: Remove sun4c floppy assembler.

There were two blocks of code for the two ways to twiddle
the terminal count pin in the AUXIO register, one for
sun4c and one for sun4m.  Kill the former.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

arch/sparc/kernel/entry.S

@@ -125,20 +125,11 @@ floppy_tdone:
 
 	set	sparc_cpu_model, %l5
 	ld	[%l5], %l5
-	subcc   %l5, 1, %g0		/* enum { sun4c = 1 }; */
-	be	1f
-	 ldub	[%l7], %l5
+	ldub	[%l7], %l5
 
 	or	%l5, 0xc2, %l5
 	stb	%l5, [%l7]
 	andn    %l5, 0x02, %l5
-	b	2f
-	 nop
-
-1:
-	or      %l5, 0xf4, %l5
-	stb     %l5, [%l7]
-	andn    %l5, 0x04, %l5
 
 2:
 	/* Kill some time so the bits set */