Revert "🔐 Call g_object_unref on lists returned by secret_service_search"

This reverts commit a63b2ddd636c62a3fe3f5e46c6c951e9fce23993.

Reason for revert: Seems to cause a unittest failure on Linux MSAN:

https://logs.chromium.org/v/?s=chromium%2Fbb%2Fchromium.memory%2FLinux_MSan_Tests%2F5764%2F%2B%2Frecipes%2Fsteps%2Funit_tests%2F0%2Flogs%2FNativeBackendLibsecretTest.PSLMatchingDisabledForNonHTMLForms%2F0

Original change's description:
> 🔐 Call g_object_unref on lists returned by secret_service_search
> 
> We currently do not seem to be properly deleting SecretItems.
> 
> The destruction of SecretItems is undocumented, but g_object_unref
> appears to have been used in other codebases for this purpose.
> 
> Bug: 393395
> Change-Id: I046911136bac266c0e1a42b09a8a0cb79b678f4a
> Reviewed-on: https://chromium-review.googlesource.com/758851
> Reviewed-by: Vaclav Brozek <vabr@chromium.org>
> Commit-Queue: Christos Froussios <cfroussios@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#515522}

TBR=vabr@chromium.org,cfroussios@chromium.org

Change-Id: I99edccd11818f72168d1bd2d7de43ccd182e83e6
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 393395
Reviewed-on: https://chromium-review.googlesource.com/763311
Reviewed-by: Colin Blundell <blundell@chromium.org>
Commit-Queue: Colin Blundell <blundell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#515537}
1 file changed