RFR: 8231051: Remove check_obj_alignment() and replace with is_object_aligned()

[Thomas Schatzl]

Hi,

On Mon, 2019-09-16 at 12:14 +0200, Per Liden wrote:
> We have a check_obj_alignment() function in oopsHierarchy.hpp. This 
> function can be removed and the calls to it can be replaced by calls
> the 
> more common is_object_aligned(), which does the same thing.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8231051
> Webrev: http://cr.openjdk.java.net/~pliden/8231051/webrev.0
> 
> Testing: Currently running though tier-1
> 
> /Per

  looks good.

Thomas