Remove a no-longer-needed workaround from eglMakeCurrent

Change Ids I857da78078dd212b523d690415cf525ecd463961 and
I38f3450005a4eec5f1a684ee7d66363e88f6d92f added/refined a work-around
for a buggy driver (that's no longer supported), and introduced a
problem by swallowing eglMakeCurrent errors coming from the driver.
This change removes the work-around, as the original author reported
that it is no longer needed.

Bug: 71505290
Bug: 111963599
Test: Build and install
Change-Id: I0121edfa076667e3320ae2c3b95608c3482937a7
Merged-Id: I0121edfa076667e3320ae2c3b95608c3482937a7
(cherry picked from commit 60d35a21)
(cherry picked from commit 97eba519)