delete some cruft from testrbm.cpp

Change-Id: I5861b06ff7dee4f1dc8f38f977fd269377d6db6b
make sure portalmat::compare does not silently fail

Change-Id: I6aeff035cc7201a589244271a6d365fe4f856fd8
make sure assert asserts

Change-Id: I8a0ad908be16236f73c6c78162dbed9936f8b5d9
matmul failing on full pixels, but works with cols=511

Change-Id: If3aee7b06e0e68d32bdc5983c0aae3ed036e639f
copy the training file to the testrbm directory

Change-Id: I739a21abc925aaf6c79d51a1062c276b16e2a101
consider other matrix passed to compare to be the reference (expected) one

Change-Id: I64e73f4b9ec6810e36cb72568886b6656f33ad5a
cacheFlushInvalidate before calling hardware

Change-Id: I405c28d842a2c7da25c5402a0c7707c69cd8241b
use default parameters to compare

Change-Id: I1f27ee5916cca1d3a6258ecb376d80c0ed5f9342