Remove a patch for binutils-2.19 that makes the cross MIPS case fail.

- it is not necessary to use the gnu_hash section by default.
- renumber following patches

 /trunk/patches/binutils/2.19/170-use-relro.patch     |   14    14     0     0 ++++++++++++++
 /trunk/patches/binutils/2.19/180-libiberty-pic.patch |   14    14     0     0 ++++++++++++++
 2 files changed, 28 insertions(+)

patches/binutils/2.19/170-generate-gnu-hash.patch

@@ -1,16 +0,0 @@
-Original patch from Gentoo:
-gentoo/src/patchsets/binutils/2.19/77_all_generate-gnu-hash.patch
-
-diff -durN binutils-2.19.orig/ld/ldmain.c binutils-2.19/ld/ldmain.c
---- binutils-2.19.orig/ld/ldmain.c	2008-11-23 16:58:24.000000000 +0100
-+++ binutils-2.19/ld/ldmain.c	2008-11-23 16:58:33.000000000 +0100
-@@ -266,6 +266,9 @@
-   link_info.combreloc = TRUE;
-   link_info.strip_discarded = TRUE;
-   link_info.emit_hash = TRUE;
-+#ifndef __mips__
-+  link_info.emit_gnu_hash = TRUE;
-+#endif
-   link_info.callbacks = &link_callbacks;
-   link_info.input_bfds_tail = &link_info.input_bfds;
-   /* SVR4 linkers seem to set DT_INIT and DT_FINI based on magic _init