Remove VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT.
Remove VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT.

This was set incorrectly as an old version of the validation layers  required it.

GPUOpen-LibrariesAndSDKs/HelloVulkan,GPUOpen-LibrariesAndSDKs/HelloVulkan,GPUOpen-LibrariesAndSDKs/HelloVulkan