Don't force 64-bit DWARF2 on MIPS

64-bit debug data is only necessary for objects with greater than 4GB of
debug data, and is not used on other 64-bit FreeBSD targets.

Sponsored by:	DARPA, AFRL

contrib/binutils/gas/config/tc-mips.c

@@ -15420,21 +15420,6 @@ MIPS options:\n\
 -mno-octeon-useun generate MIPS unaligned load/store instructions\n"));
 }
 
-enum dwarf2_format
-mips_dwarf2_format (void)
-{
-  if (HAVE_64BIT_SYMBOLS)
-    {
-#ifdef TE_IRIX
-      return dwarf2_format_64bit_irix;
-#else
-      return dwarf2_format_64bit;
-#endif
-    }
-  else
-    return dwarf2_format_32bit;
-}
-
 int
 mips_dwarf2_addr_size (void)
 {

contrib/binutils/gas/config/tc-mips.h

@@ -155,10 +155,6 @@ extern void mips_emit_delays (void);
 extern void mips_enable_auto_align (void);
 #define md_elf_section_change_hook()	mips_enable_auto_align()
 
-enum dwarf2_format;
-extern enum dwarf2_format mips_dwarf2_format (void);
-#define DWARF2_FORMAT() mips_dwarf2_format ()
-
 extern int mips_dwarf2_addr_size (void);
 #define DWARF2_ADDR_SIZE(bfd) mips_dwarf2_addr_size ()