user32/edit: Let DefWindowProcA/W() handle WM_IME_CHAR.

dlls/user32/edit.c

@@ -4976,20 +4976,6 @@ LRESULT EditWndProc_common( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, B
                 }
 		break;
 
-        case WM_IME_CHAR:
-            if (!unicode)
-            {
-                WCHAR charW;
-                CHAR  strng[2];
-
-                strng[0] = wParam >> 8;
-                strng[1] = wParam & 0xff;
-                if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
-                else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
-		result = EDIT_WM_Char(es, charW);
-		break;
-            }
-            /* fall through */
 	case WM_CHAR:
 	{
 		WCHAR charW;

dlls/user32/tests/msg.c

@@ -12271,7 +12271,7 @@ static DWORD WINAPI test_edit_ime_messages(void *unused_arg)
     flush_sequence();
     SendMessageA(hwnd, WM_IME_CHAR, '0', 1);
     while (PeekMessageA(&msg, 0, 0, 0, PM_REMOVE)) DispatchMessageA(&msg);
-    ok_sequence(edit_wm_ime_char_seq, "WM_IME_CHAR", TRUE);
+    ok_sequence(edit_wm_ime_char_seq, "WM_IME_CHAR", FALSE);
 
     /* Test IME messages when EIMES_GETCOMPSTRATONCE is set */
     lr = SendMessageA(hwnd, EM_SETIMESTATUS, EMSIS_COMPOSITIONSTRING, EIMES_GETCOMPSTRATONCE);
@@ -12292,7 +12292,7 @@ static DWORD WINAPI test_edit_ime_messages(void *unused_arg)
     flush_sequence();
     SendMessageA(hwnd, WM_IME_CHAR, '0', 1);
     while (PeekMessageA(&msg, 0, 0, 0, PM_REMOVE)) DispatchMessageA(&msg);
-    ok_sequence(edit_wm_ime_char_seq, "WM_IME_CHAR", TRUE);
+    ok_sequence(edit_wm_ime_char_seq, "WM_IME_CHAR", FALSE);
 
     ImmReleaseContext(hwnd, himc);
     DestroyWindow(hwnd);