With a flat head screwdriver...just fit the corner of the driver into the little spaces of the 'E' and apply gentle consistent leverage.. it may 'ping' off so aim towards a pit towel.
To re-fit simply use long nose pliers and 'clip' it back on.
Hope that made sense...
J
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Nuke it from Orbit....it's the only way to be sure...
ANVIL-GFX
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