toolchain: gdb: Remove ARC patches

The ARC specific gdb was removed some time ago.

Fixes: 969690b33c ("toolchain/gdb: Don't use gdb-arc")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

toolchain/gdb/patches-arc/100-no_extern_inline.patch

@@ -1,32 +0,0 @@
---- a/sim/common/sim-arange.c
-+++ b/sim/common/sim-arange.c
-@@ -280,11 +280,7 @@ sim_addr_range_delete (ADDR_RANGE *ar, a
-   build_search_tree (ar);
- }
- 
--#endif /* DEFINE_NON_INLINE_P */
--
--#if DEFINE_INLINE_P
--
--SIM_ARANGE_INLINE int
-+int
- sim_addr_range_hit_p (ADDR_RANGE *ar, address_word addr)
- {
-   ADDR_RANGE_TREE *t = ar->range_tree;
-@@ -301,4 +297,4 @@ sim_addr_range_hit_p (ADDR_RANGE *ar, ad
-   return 0;
- }
- 
--#endif /* DEFINE_INLINE_P */
-+#endif /* DEFINE_NON_INLINE_P */
---- a/sim/common/sim-arange.h
-+++ b/sim/common/sim-arange.h
-@@ -73,7 +73,7 @@ extern void sim_addr_range_delete (ADDR_
- 
- /* Return non-zero if ADDR is in range AR, traversing the entire tree.
-    If no range is specified, that is defined to mean "everything".  */
--SIM_ARANGE_INLINE int
-+extern int
- sim_addr_range_hit_p (ADDR_RANGE * /*ar*/, address_word /*addr*/);
- #define ADDR_RANGE_HIT_P(ar, addr) \
-   ((ar)->range_tree == NULL || sim_addr_range_hit_p ((ar), (addr)))

toolchain/gdb/patches-arc/110-no_testsuite.patch

@@ -1,21 +0,0 @@
---- a/gdb/configure
-+++ b/gdb/configure
-@@ -870,8 +870,7 @@ MAKEINFOFLAGS
- YACC
- YFLAGS
- XMKMF'
--ac_subdirs_all='testsuite
--gdbtk
-+ac_subdirs_all='gdbtk
- multi-ice
- gdbserver'
- 
-@@ -5610,7 +5610,7 @@ $as_echo "$with_auto_load_safe_path" >&6
- 
- 
- 
--subdirs="$subdirs testsuite"
-+subdirs="$subdirs"
- 
- 
- # Check whether to support alternative target configurations

toolchain/gdb/patches-arc/120-fix-compile-flag-mismatch.patch

@@ -1,11 +0,0 @@
---- a/gdb/gdbserver/configure
-+++ b/gdb/gdbserver/configure
-@@ -2468,7 +2468,7 @@ $as_echo "$as_me: error: \`$ac_var' was
-       ac_cache_corrupted=: ;;
-     ,);;
-     *)
--      if test "x$ac_old_val" != "x$ac_new_val"; then
-+      if test "`echo x$ac_old_val`" != "`echo x$ac_new_val`"; then
- 	# differences in whitespace do not lead to failure.
- 	ac_old_val_w=`echo x $ac_old_val`
- 	ac_new_val_w=`echo x $ac_new_val`