Disable WebMock for view streaming tests.
Disable WebMock for view streaming tests.

There is something in WebMock 1.8.11 that causes the entire response
body to be read, even if it's in a non-mocked request that has been
passed a block.

Aside from this _not_ properly emulating Net::HTTP's behavior, it also
really messes with JSON::Stream::Parser, which has to handle a few
hundred kB of JSON text at once.  This, in turn, causes our specs to
really slow down.

yipdw/analysand