Os-login : Cleanup dependency

[athakor]

towards #4383

[codecov]

Codecov Report

Merging #5665 into master will decrease coverage by 0.29%.
The diff coverage is n/a.

@@ Coverage Diff @@## master #5665 +/- ##
===========================================
- Coverage 46.71% 46.42% -0.3% + Complexity 24644 24629 -15 
===========================================
Files 2351 2351 Lines 256127 256009 -118 Branches 29320 28536 -784 ===========================================
- Hits 119648 118850 -798 + Misses 127559 127479 -80 - Partials 8920 9680 +760

Impacted Files	Coverage Δ	Complexity Δ
...va/com/google/cloud/compute/v1/InstanceClient.java	48.95% <0%> (-6.46%)	139% <0%> (ø)
...ava/com/google/cloud/compute/v1/ProjectClient.java	51.14% <0%> (-5.94%)	55% <0%> (ø)
...ava/com/google/cloud/compute/v1/NetworkClient.java	49.63% <0%> (-5.84%)	35% <0%> (ø)
...ava/com/google/cloud/compute/v1/LicenseClient.java	50.41% <0%> (-5.79%)	31% <0%> (ø)
.../com/google/cloud/compute/v1/RegionDiskClient.java	48.92% <0%> (-5.76%)	35% <0%> (ø)
...va/com/google/cloud/compute/v1/SnapshotClient.java	50% <0%> (-5.74%)	31% <0%> (ø)
.../java/com/google/cloud/compute/v1/ImageClient.java	49.04% <0%> (-5.74%)	43% <0%> (ø)
.../google/cloud/compute/v1/TargetSslProxyClient.java	48.57% <0%> (-5.72%)	35% <0%> (ø)
.../google/cloud/compute/v1/SecurityPolicyClient.java	48.1% <0%> (-5.7%)	39% <0%> (ø)
...d/compute/v1/RegionInstanceGroupManagerClient.java	48.81% <0%> (-5.69%)	51% <0%> (ø)
... and 166 more

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