Get rid of GetCurrentTime16().

dlls/user/user.spec

diff --git a/dlls/user/user.spec b/dlls/user/user.spec
index f9203d0..45e009f 100644
--- a/dlls/user/user.spec
+++ b/dlls/user/user.spec
@@ -17,7 +17,8 @@
 12  pascal16 KillTimer(word word) KillTimer16
 13  pascal   GetTickCount() GetTickCount
 14  pascal   GetTimerResolution() GetTimerResolution16
-15  pascal   GetCurrentTime() GetCurrentTime16
+# GetCurrentTime is effectively identical to GetTickCount
+15  pascal   GetCurrentTime() GetTickCount
 16  pascal16 ClipCursor(ptr) ClipCursor16
 17  pascal16 GetCursorPos(ptr) GetCursorPos16
 18  pascal16 SetCapture(word) SetCapture16

windows/message.c

diff --git a/windows/message.c b/windows/message.c
index 29f7ae9..213e089 100644
--- a/windows/message.c
+++ b/windows/message.c
@@ -2432,17 +2432,6 @@
 
 
 /***********************************************************************
- *		GetCurrentTime (USER.15)
- *
- * (effectively identical to GetTickCount)
- */
-DWORD WINAPI GetCurrentTime16(void)
-{
-    return GetTickCount();
-}
-
-
-/***********************************************************************
  *		InSendMessage (USER.192)
  */
 BOOL16 WINAPI InSendMessage16(void)