Created attachment 1118892 [details]
Delete button enabled in Advanced Search expression editor

Description of problem:
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I ran into this issue while verifying 
https://bugzilla.redhat.com/show_bug.cgi?id=1295526

In the advanced search expression editor,the Delete button is still enabled after a filter is deleted.

Version-Release number of selected component (if applicable):
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5.5.2.2


How reproducible:
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Always


Steps to Reproduce:
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1. Go to the Providers, advanced search, specify some random conditions as a filter and then save it
2. Load the filter.
3. Click Delete.


Actual results:
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Notice that after deleting the filter,the Delete button is still enabled 
in the advanced search expression editor.

Clicking on this Delete button results in a UI error.


Expected results:
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Delete button should be disabled after filter is deleted in advanced search expression editor.


Additional info:
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