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/testdir/test_cscope.vim b/src/testdir/test_cscope.vim
index d70103c..d29949c 100644
--- a/src/testdir/test_cscope.vim
+++ b/src/testdir/test_cscope.vim
@@ -122,25 +122,23 @@
     call assert_fails('cs find', 'E560:')
     call assert_fails('cs find x', 'E560:')
 
-    if has('float')
-      " Test: Find places where this symbol is assigned a value
-      " this needs a cscope >= 15.8
-      " unfortunately, Travis has cscope version 15.7
-      let cscope_version = systemlist('cscope --version')[0]
-      let cs_version = str2float(matchstr(cscope_version, '\d\+\(\.\d\+\)\?'))
-      if cs_version >= 15.8
-        for cmd in ['cs find a item', 'cs find 9 item']
-          let a = execute(cmd)
-          call assert_equal(['', '(1 of 4): <<test_mf_hash>> item = LALLOC_CLEAR_ONE(mf_hashitem_T);'], split(a, '\n', 1))
-          call assert_equal('	item = LALLOC_CLEAR_ONE(mf_hashitem_T);', getline('.'))
-          cnext
-          call assert_equal('	item = mf_hash_find(&ht, key);', getline('.'))
-          cnext
-          call assert_equal('	    item = mf_hash_find(&ht, key);', getline('.'))
-          cnext
-          call assert_equal('	item = mf_hash_find(&ht, key);', getline('.'))
-        endfor
-      endif
+    " Test: Find places where this symbol is assigned a value
+    " this needs a cscope >= 15.8
+    " unfortunately, Travis has cscope version 15.7
+    let cscope_version = systemlist('cscope --version')[0]
+    let cs_version = str2float(matchstr(cscope_version, '\d\+\(\.\d\+\)\?'))
+    if cs_version >= 15.8
+      for cmd in ['cs find a item', 'cs find 9 item']
+        let a = execute(cmd)
+        call assert_equal(['', '(1 of 4): <<test_mf_hash>> item = LALLOC_CLEAR_ONE(mf_hashitem_T);'], split(a, '\n', 1))
+        call assert_equal('	item = LALLOC_CLEAR_ONE(mf_hashitem_T);', getline('.'))
+        cnext
+        call assert_equal('	item = mf_hash_find(&ht, key);', getline('.'))
+        cnext
+        call assert_equal('	    item = mf_hash_find(&ht, key);', getline('.'))
+        cnext
+        call assert_equal('	item = mf_hash_find(&ht, key);', getline('.'))
+      endfor
     endif
 
     " Test: leading whitespace is not removed for cscope find text