patch 9.0.0657: too many #ifdefs

Problem:    Too many #ifdefs.
Solution:   Graduate the +cmdwin feature.  Now the tiny and small builds are
            equal, drop the small build.  (Martin Tournoij, closes #11268)
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 0220581..770daa9 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -52,16 +52,12 @@
 static int	cmdline_paste(int regname, int literally, int remcr);
 static void	redrawcmdprompt(void);
 static int	ccheck_abbr(int);
+static int	open_cmdwin(void);
 #ifdef FEAT_SEARCH_EXTRA
 static int	empty_pattern_magic(char_u *pat, size_t len, magic_T magic_val);
 #endif
 
-#ifdef FEAT_CMDWIN
-static int	open_cmdwin(void);
-
 static int	cedit_key = -1;	// key value of 'cedit' option
-#endif
-
 
     static void
 trigger_cmd_autocmd(int typechar, int evt)
@@ -1922,7 +1918,6 @@
 					// cmdline_handle_backslash_key()
 	}
 
-#ifdef FEAT_CMDWIN
 	if (c == cedit_key || c == K_CMDWIN)
 	{
 	    // TODO: why is ex_normal_busy checked here?
@@ -1935,11 +1930,8 @@
 		some_key_typed = TRUE;
 	    }
 	}
-# ifdef FEAT_DIGRAPHS
-	else
-# endif
-#endif
 #ifdef FEAT_DIGRAPHS
+	else
 	    c = do_digraph(c);
 #endif
 
@@ -2687,10 +2679,8 @@
     int
 text_locked(void)
 {
-#ifdef FEAT_CMDWIN
     if (cmdwin_type != 0)
 	return TRUE;
-#endif
     return textlock != 0;
 }
 
@@ -2707,10 +2697,8 @@
     char *
 get_text_locked_msg(void)
 {
-#ifdef FEAT_CMDWIN
     if (cmdwin_type != 0)
 	return e_invalid_in_cmdline_window;
-#endif
     return e_not_allowed_to_change_text_or_change_window;
 }
 
@@ -4080,7 +4068,6 @@
     return &ccline;
 }
 
-#if defined(FEAT_EVAL) || defined(FEAT_CMDWIN) || defined(PROTO)
 /*
  * Get pointer to the command line info to use. save_cmdline() may clear
  * ccline and put the previous value in prev_ccline.
@@ -4096,9 +4083,7 @@
 	return &prev_ccline;
     return NULL;
 }
-#endif
 
-#if defined(FEAT_EVAL) || defined(FEAT_CMDWIN)
 /*
  * Get the current command-line type.
  * Returns ':' or '/' or '?' or '@' or '>' or '-'
@@ -4120,7 +4105,6 @@
 	    '-';
     return p->cmdfirstc;
 }
-#endif
 
 #if defined(FEAT_EVAL) || defined(PROTO)
 /*
@@ -4365,7 +4349,6 @@
     return OK;
 }
 
-#if defined(FEAT_CMDWIN) || defined(PROTO)
 /*
  * Check value of 'cedit' and set cedit_key.
  * Returns NULL if value is OK, error message otherwise.
@@ -4694,7 +4677,6 @@
 {
     return cmdwin_type != 0 && get_cmdline_type() == NUL;
 }
-#endif // FEAT_CMDWIN
 
 /*
  * Used for commands that either take a simple command string argument, or: