test: remove --proxyquire-shim from bigtable, spanner, and storage - #9645

test: remove --proxyquire-shim from bigtable, spanner, and storage#9645

danieljbruce wants to merge 8 commits into

fix/remove-proxyquire-shim-logging-pubsubgoogleapis/google-cloud-node:fix/remove-proxyquire-shim-logging-pubsubfrom

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