Remove NetworkPermissionConfig package

Move declaration of MAINLINE_NETWORK_STACK permission from the
NetworkPermissionConfig package to the NetworkStack package.

Bug: 223649084
Test: m
Change-Id: I96d60e60255f66b0356f04aeccac1d8eaed8c88b
3 files changed
tree: 4b825dc642cb6eb9a060e54bf8d69288fbee4904

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