Remove dead constant.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3724 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/amd64/core_arch.h b/coregrind/amd64/core_arch.h
index f5bec01..4328d45 100644
--- a/coregrind/amd64/core_arch.h
+++ b/coregrind/amd64/core_arch.h
@@ -105,9 +105,6 @@
    Miscellaneous constants
    ------------------------------------------------------------------ */
 
-// Valgrind's signal stack size, in words.
-#define VGA_SIGSTACK_SIZE_W   10000
-
 // Valgrind's stack size, in words.
 #define VGA_STACK_SIZE_W      16384
 
diff --git a/coregrind/arm/core_arch.h b/coregrind/arm/core_arch.h
index 1d3c147..1936535 100644
--- a/coregrind/arm/core_arch.h
+++ b/coregrind/arm/core_arch.h
@@ -106,9 +106,6 @@
    Miscellaneous constants
    ------------------------------------------------------------------ */
 
-// Valgrind's signal stack size, in words.
-#define VGA_SIGSTACK_SIZE_W   10000
-
 // Base address of client address space.
 #define VGA_CLIENT_BASE       0x0ul
 
diff --git a/coregrind/x86/core_arch.h b/coregrind/x86/core_arch.h
index 60ee74a..954fff8 100644
--- a/coregrind/x86/core_arch.h
+++ b/coregrind/x86/core_arch.h
@@ -109,9 +109,6 @@
    Miscellaneous constants
    ------------------------------------------------------------------ */
 
-// Valgrind's signal stack size, in words.
-#define VGA_SIGSTACK_SIZE_W   10000
-
 // Valgrind's stack size, in words.
 #define VGA_STACK_SIZE_W      16384