Drop some unused variables

Found with this Coccinelle script:
@@
type T;
identifier i;
expression E;
@@

(
extern T i;
|
- T i;
  <+... when != i
- i = E;
  ...+>
)

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@855 f158a5a8-5612-0410-a976-696ce0be7e32

arch/sparc32/romvec.c

@@ -197,10 +197,9 @@ static const char *obp_nextprop(int node, const char *name)
 
         return "";
     } else {
-        int len;
         char *str;
 
-        len = POP();
+        POP(); /* len */
         str = (char *) POP();
 
         DPRINTF("obp_nextprop(0x%x, %s) = %s\n", node, name, str);

drivers/pc_kbd.c

@@ -164,15 +164,12 @@ pc_kbd_open(unsigned long *address)
     int len;
     phandle_t ph;
     unsigned long *prop;
-    char *args;
 
     fword("my-self");
     fword("ihandle>phandle");
     ph = (phandle_t)POP();
     prop = (unsigned long *)get_property(ph, "address", &len);
     *address = *prop;
-    fword("my-args");
-    args = pop_fstr_copy();
 
     RET ( -1 );
 }

drivers/pc_serial.c

@@ -145,15 +145,12 @@ pc_serial_open(unsigned long *address)
     int len;
     phandle_t ph;
     unsigned long *prop;
-    char *args;
 
     fword("my-self");
     fword("ihandle>phandle");
     ph = (phandle_t)POP();
     prop = (unsigned long *)get_property(ph, "address", &len);
     *address = *prop;
-    fword("my-args");
-    args = pop_fstr_copy();
 
     RET ( -1 );
 }