Revert "Workaround for Google Cloud SDK packaging problem"

[tautschnig]

This reverts commit 60540c7.

The problem has been addressed in version 218.0.0-0 of the Google Cloud SDK.

• Each commit message has a non-empty body, explaining why the change was made.
• [n/a] My contribution is formatted in line with CODING_STANDARD.md.
• [n/a] Methods or procedures I have added are documented, following the guidelines provided in CODING_STANDARD.md.
• Regression or unit tests are included, or existing tests cover the modified code (in this case I have detailed which ones those are in the commit message).
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[allredj]

Passed Diffblue compatibility checks (cbmc commit: 219158a).
Build URL: https://travis-ci.com/diffblue/test-gen/builds/86253511