aacenc: Commenting of Check to Avoid Crash

In AACEncoder.cpp, the "Check" functionality is used to check whether
the No. of Samples for the output is not zero. In case of 1 channel
recording, the No. of Samples per frame is 1024 and the acceptable
limit is 1024 for AAC rendition. So, no problem occurs. But in case of
2 channels, No. of Samples = 1024 * 2 = 2048. While the acceptable
limit is 2048, the encoder gets 1024 samples per frame and hence waits
for another 1024 samples. In the mean time, it sends
outputData.Length = 0 and hence there is a crash issue.

If the check condition is commented, there is no further problem and
encoding can be done smoothly. This change does not break any other
functionality.

bug 795379, bug 781177

Change-Id: If11d469f261dc5f817d2e6f1b780cf873711cde6