Removal of unnecessary listed Account names

[Cliff Williams]

Gents

After a couple of weeks using GnuCash I made a mistake and renamed some 
of my accounts. In fact in most cases just changed the name from 
low-case to upper-case so that I could easily identify the headings. 
What's happened now is that when I import new data and begin to match 
the incoming sub accounts with mine in GnuCash I now have two sets of 
headings to sort through, one in upper-case the other in lower.  The 
issue also appears when manually inputting or changing a transaction; In 
my case the dropdown list in account shows, one name in upper-case the 
other in lower.

Is there a way of deleting all the lower case account headings to make 
the importing of data easier.  I do recognise that this is a short term 
issue as over time the accounts will automatically match the headings 
correctly but it is a bit of a pain at the moment.

I've not been able to find any related information in your support 
documentation.

Any assistance would be much appreciated.

Thanks

Cliff Williams