Semaphore spec has been updated to reflect the fact that semaphores
will be in the appropriate - pending signal or pending wait - state
when returning from clEnqueueSignalSemaphore or
clEnqueueWaitSemaphore commands: KhronosGroup/OpenCL-Docs#882
Deleted the following tests to match the updated spec:
semaphores_order_1 - Test calls EnqueueWaitSemaphore before calling
EnqueueSignalSemaphore and expects this wait to succeed.
This behavior is not compatible with the recent
spec updates to semaphores.
semaphores_order_2 & semaphores_order_3 - Calling
clEnqueueSignalSemaphoresKHR with a dependency on a user event may
cause the implementation to block until the user event is complete.
This is unsafe usage of clEnqueueSignalSemaphoresKHR and may
lead to deadlock.
semaphores_invalid_command - This test checks for specific behavior
when waiting on a semaphore in an invalid state.
According to the spec, this is undefined behavior,
and therefore cannot be tested directly.
Co-authored-by: Joshua Kelly <joshkell@qti.qualcomm.com>