Merge pull request #17818 from komakai:documentation-improvements

Documentation fixes/improvements

* Documentation fixes/improvements

* Remove HASH_UTILS defines

modules/core/misc/objc/common/Point2d.mm

@@ -6,7 +6,6 @@
 
 #import "Point2d.h"
 #import "Rect2d.h"
-#import "CVObjcUtil.h"
 
 @implementation Point2d {
     cv::Point2d native;
@@ -90,6 +89,8 @@
     return [rect contains:self];
 }
 
+#define DOUBLE_TO_BITS(x)  ((Cv64suf){ .f = x }).i
+
 - (NSUInteger)hash {
     int prime = 31;
     uint32_t result = 1;