Mirror of the change applied to GENERATE_KEY in 76e0337. Drop the
outer shouldSkipUid gate so handleCreateOperation always runs.
handleCreateOperation already gates on the cache lookup
(KeyMintSecurityLevelInterceptor.kt:298-326): domain=APP looks up
KeyIdentifier(callingUid, alias) in generatedKeys and forwards to
HAL on miss; domain=KEY_ID looks up by nspace filtered by uid and
forwards on miss. The outer UID gate was redundant when the lookup
hits, and harmful when a key was generated under a non-target-list
UID (e.g. Shizuku-routed callers at shell 2000 / root 0 after
76e0337).
Without this change, a BYO key created under Shizuku-routed UID
that the app later attempts to use (signing operation under the
same Shizuku-routed UID) would be forwarded to real HAL, which has
no record of our software key, producing a silent operation
failure instead of the simulator handling the sign internally.
Surfaced by adversarial audit. CREATE_OPERATION no longer needs the
outer gate because handleCreateOperation's own cache-or-forward
logic is the correct gate.
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