fix(core/client): drop two redundant glob imports that warned on tvOS

`punktfunk-core` emitted `unused import: super::super::*` for
client/pump/handshake.rs and client/pump/input_task.rs — but only when
built for a tvOS target, where the cfg set leaves the glob contributing
nothing. Nobody saw them because CI never builds tvOS: that needs
BUILD_TVOS=1 and the Tier-3 build-std nightly path, and the Apple
workflow only runs swift build/test (macOS).

Both files also `use super::*`, i.e. the parent `pump` module, which
itself globs `super::*` (`client`) unconditionally — so every name stays
reachable by that path and the inner glob was pure duplication. Their
sibling datagram_task.rs already imports only `use super::*`, so this
also makes the module consistent. control_task.rs and data.rs keep
theirs: those genuinely resolve names through it and never warned.

Verified warning-free AND compiling on every slice the xcframework
ships — aarch64/x86_64-apple-darwin, aarch64-apple-ios,
aarch64-apple-ios-sim, aarch64-apple-tvos, aarch64-apple-tvos-sim,
x86_64-apple-tvos — plus Linux with and without the `quic` feature. A
full xcframework rebuild now reports 0 warnings (was 6: two per tvOS
slice), and swift build, swift test (170 tests), and xcodebuild for the
macOS, iOS and tvOS schemes all pass.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

crates/punktfunk-core/src/client/pump/handshake.rs

@@ -3,7 +3,6 @@
 //! up the data-plane [`Session`]. A typed application close from the host surfaces as
 //! [`PunktfunkError::Rejected`] instead of the generic transport error.
 
-use super::super::*;
 use super::*;
 
 /// Everything [`run_pump`](super::run_pump) needs from a successful connect + handshake.

crates/punktfunk-core/src/client/pump/input_task.rs

@@ -9,7 +9,6 @@
 //! Keyboard/mouse/touch events pass through unchanged; an older host (no caps bit) keeps
 //! getting the legacy per-transition gamepad events.
 
-use super::super::*;
 use super::*;
 
 pub(super) async fn run(