patch 9.0.0491: no good reason to build without the float feature

Problem:    No good reason to build without the float feature.
Solution:   Remove configure check for float and "#ifdef FEAT_FLOAT".
diff --git a/src/syntax.c b/src/syntax.c
index c68e001..ea8d541 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -6694,7 +6694,7 @@
 {
     int		idx;
     synpat_T	*spp;
-# if defined(FEAT_RELTIME) && defined(FEAT_FLOAT)
+# if defined(FEAT_RELTIME)
     proftime_T	tm;
 # endif
     int		len;
@@ -6724,7 +6724,7 @@
 	    p->match = spp->sp_time.match;
 	    total_count += spp->sp_time.count;
 	    p->slowest = spp->sp_time.slowest;
-# if defined(FEAT_RELTIME) && defined(FEAT_FLOAT)
+# if defined(FEAT_RELTIME)
 	    profile_divide(&spp->sp_time.total, spp->sp_time.count, &tm);
 	    p->average = tm;
 # endif
@@ -6758,10 +6758,8 @@
 	msg_puts(profile_msg(&p->slowest));
 	msg_puts(" ");
 	msg_advance(38);
-# ifdef FEAT_FLOAT
 	msg_puts(profile_msg(&p->average));
 	msg_puts(" ");
-# endif
 	msg_advance(50);
 	msg_outtrans(highlight_group_name(p->id - 1));
 	msg_puts(" ");