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/drawline.c b/src/drawline.c
index d36eee7..3e796d2 100644
--- a/src/drawline.c
+++ b/src/drawline.c
@@ -156,11 +156,7 @@
 
 // draw_state values for items that are drawn in sequence:
 #define WL_START	0		// nothing done yet, must be zero
-#ifdef FEAT_CMDWIN
-# define WL_CMDLINE	(WL_START + 1)	// cmdline window column
-#else
-# define WL_CMDLINE	WL_START
-#endif
+#define WL_CMDLINE	(WL_START + 1)	// cmdline window column
 #ifdef FEAT_FOLDING
 # define WL_FOLD	(WL_CMDLINE + 1)	// 'foldcolumn'
 #else
@@ -1678,7 +1674,6 @@
 		line_attr = line_attr_save;
 	    }
 #endif
-#ifdef FEAT_CMDWIN
 	    if (wlv.draw_state == WL_CMDLINE - 1 && wlv.n_extra == 0)
 	    {
 		wlv.draw_state = WL_CMDLINE;
@@ -1692,7 +1687,6 @@
 				hl_combine_attr(wlv.wcr_attr, HL_ATTR(HLF_AT));
 		}
 	    }
-#endif
 #ifdef FEAT_FOLDING
 	    if (wlv.draw_state == WL_FOLD - 1 && wlv.n_extra == 0)
 	    {