diff --git a/server/context_alpha.c b/server/context_alpha.c
index 41771bf00e3..118bff77ed7 100644
--- a/server/context_alpha.c
+++ b/server/context_alpha.c
@@ -334,12 +334,6 @@ void *get_thread_ip( struct thread *thread )
     return (void *)context.Fir;
 }
 
-/* determine if we should continue the thread in single-step mode */
-int get_thread_single_step( struct thread *thread )
-{
-    return 0;  /* FIXME */
-}
-
 /* send a signal to a specific thread */
 int tkill( int tgid, int pid, int sig )
 {
diff --git a/server/context_i386.c b/server/context_i386.c
index cf334cb7cbf..7285905c0b9 100644
--- a/server/context_i386.c
+++ b/server/context_i386.c
@@ -550,15 +550,6 @@ void *get_thread_ip( struct thread *thread )
     return (void *)context.Eip;
 }
 
-/* determine if we should continue the thread in single-step mode */
-int get_thread_single_step( struct thread *thread )
-{
-    CONTEXT context;
-    if (thread->context) return 0;  /* don't single-step inside exception event */
-    get_thread_context_ptrace( thread, CONTEXT_CONTROL, &context );
-    return (context.EFlags & 0x100) != 0;
-}
-
 /* send a signal to a specific thread */
 int tkill( int tgid, int pid, int sig )
 {
diff --git a/server/context_powerpc.c b/server/context_powerpc.c
index 9a438b97902..8cf1424d3d6 100644
--- a/server/context_powerpc.c
+++ b/server/context_powerpc.c
@@ -273,18 +273,6 @@ void *get_thread_ip( struct thread *thread )
     return (void *)context.Iar;
 }
 
-/* determine if we should continue the thread in single-step mode */
-int get_thread_single_step( struct thread *thread )
-{
-    CONTEXT context;
-    if (thread->context) return 0;
-    get_thread_context_ptrace( thread, CONTEXT_CONTROL, &context );
-#ifndef MSR_SE
-# define MSR_SE (1<<10)
-#endif
-    return (context.Msr & MSR_SE) != 0;
-}
-
 /* send a signal to a specific thread */
 int tkill( int tgid, int pid, int sig )
 {
diff --git a/server/context_sparc.c b/server/context_sparc.c
index 39c3dd33613..805fd7e5911 100644
--- a/server/context_sparc.c
+++ b/server/context_sparc.c
@@ -172,12 +172,6 @@ void *get_thread_ip( struct thread *thread )
     return (void *)context.pc;
 }
 
-/* determine if we should continue the thread in single-step mode */
-int get_thread_single_step( struct thread *thread )
-{
-    return 0;  /* FIXME */
-}
-
 /* send a signal to a specific thread */
 int tkill( int tgid, int pid, int sig )
 {
diff --git a/server/context_x86_64.c b/server/context_x86_64.c
index ee8bb318e1e..ee9665e6f22 100644
--- a/server/context_x86_64.c
+++ b/server/context_x86_64.c
@@ -261,15 +261,6 @@ void *get_thread_ip( struct thread *thread )
     return (void *)context.Rip;
 }
 
-/* determine if we should continue the thread in single-step mode */
-int get_thread_single_step( struct thread *thread )
-{
-    CONTEXT context;
-    if (thread->context) return 0;  /* don't single-step inside exception event */
-    get_thread_context_ptrace( thread, CONTEXT_CONTROL, &context );
-    return (context.EFlags & 0x100) != 0;
-}
-
 /* send a signal to a specific thread */
 int tkill( int tgid, int pid, int sig )
 {
diff --git a/server/thread.h b/server/thread.h
index ec5a55e8f0b..6b4818caddf 100644
--- a/server/thread.h
+++ b/server/thread.h
@@ -124,7 +124,6 @@ extern int get_ptrace_pid( struct thread *thread );
 extern int suspend_for_ptrace( struct thread *thread );
 extern void resume_after_ptrace( struct thread *thread );
 extern void *get_thread_ip( struct thread *thread );
-extern int get_thread_single_step( struct thread *thread );
 extern void get_thread_context( struct thread *thread, CONTEXT *context, unsigned int flags );
 extern void set_thread_context( struct thread *thread, const CONTEXT *context, unsigned int flags );
 extern int tkill( int tgid, int pid, int sig );