Removing an unnecessary or unwanted post, in Google Blogger Help, isn't difficult.

• Go back to each unnecessary post. Find your name at the top of the post. 
• Find "More options" to the right of your name, and click there.
• Find "Remove", and click there. 
• Click on the "Yes" button to confirm.

That's all there is to it.  Help keep the forums tidy, and remove unnecessary posts!

 

Having done that, start a new thread in the right forum, if necessary.