Remove blindly enabling all device extensions

Remove blindly enabling all device extensions

A couple didn't need any or just one extension, but enabled all of
them.

This is not correct.  For example, AMD's Vulkan implementation exposes
both VK_KHR_maintenance1 and VK_AMD_negative_viewport_height, which
cannot be enabled at the same time according to VkDeviceCreateInfo
valid usage.

Components: vulkan

VK_GL_CTS Issue: 734, 736

Affects:
dEQP-VK.synchronization.op.multi_queue.*
dEQP-VK.multiview.*

Change-Id: I22682f15e0ef552d778e980c5f836c48d26d4905