binutils: Get rid of obsolete patches

binutils: Get rid of obsolete patches

Some patches for Binutils seems to not be really needed.
Moreover for some of them I was not able to find any justification
for their introduction.

1. 0002-ld-makefile.patch

   This one I may track down to at least 2.15.92.0.2 here [1].
   Commit message just says: "Integrate some debian patches,
   extracted from binutils_2.15-4.diff"

   But in OpenEmbedded they got rid of it long ago on switch to 2.26, see [2].

2. 0003-check-ldrunpath-length.patch

   The same story here.

3. 0004-add-sysroot-fix-from-bug-3049.patch

   Bug mentioned in this patch was marked as "fixed" in 2012, see [3].

[1] https://git.buildroot.org/buildroot/commit/?id=ce2722a8f2abee5b60862bc896333b77a7502c82
[2] https://github.com/openembedded/openembedded-core/commit/3c7fe424f850af70989ad682dd9c5be70cd02ca5
[3]https://sourceware.org/bugzilla/show_bug.cgi?id=10340

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Peter Korsgaard <peter@korsgaard.com>
Cc: Romain Naour <romain.naour@smile.fr>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>