MIPS: qi_lb60: remove custom u-boot.lds script

Remove the board specific linker script. It is not
needed anymore, the unified MIPS linker script can
be used instead.

The qi_lb60 target produces a slightly different
image after the change than before. The value of
'num_got_entries' symbol is different:

    @@ -49,7 +49,7 @@
     801000b4:      80122d00        lb      s2,11520(zero)
     801000b8:      80123500        lb      s2,13568(zero)
     801000bc:      80123ef8        lb      s2,16120(zero)
    -801000c0:      00000139        0x139
    +801000c0:      00000136        tne     zero,zero,0x4

     801000c4 <in_ram>:
     801000c4:      8d0bfffc        lw      t3,-4(t0)

This is caused by the different placement of the
'__got_start' and '__got_end' symbols between the
board specific scrip and the unified script.

  board specific script:

        __got_start = .;
        .got  : { *(.got) }
        __got_end = .;

  unified script:
        .got  : {
                __got_start = .;
                *(.got)
                __got_end = .;
        }

Despite this difference, the resulting images are
functionally identical.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Xiangfu Liu <xiangfu@openmobilefree.net>

board/qi/qi_lb60/u-boot.lds

@@ -1,61 +0,0 @@
-/*
- * (C) Copyright 2006
- * Ingenic Semiconductor, <jlwei@ingenic.cn>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-OUTPUT_ARCH(mips)
-ENTRY(_start)
-SECTIONS
-{
-	. = 0x00000000;
-
-	. = ALIGN(4);
-	.text :
-	{
-	  *(.text*)
-	}
-
-	. = ALIGN(4);
-	.rodata  : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
-
-	. = ALIGN(4);
-	.data  : { *(.data*) }
-
-	. = .;
-	_gp = ALIGN(16) + 0x7ff0;
-
-	__got_start = .;
-	.got  : { *(.got) }
-	__got_end = .;
-
-	.sdata  : { *(.sdata*) }
-
-
-	. = ALIGN(4);
-	.u_boot_list : {
-	#include <u-boot.lst>
-	}
-
-	uboot_end_data = .;
-	num_got_entries = (__got_end - __got_start) >> 2;
-
-	. = ALIGN(4);
-	.sbss  : { *(.sbss*) }
-	.bss  : { *(.bss*) . = ALIGN(4); }
-	uboot_end = .;
-}