Kernel/USB: Remove get_device_{at_port,from_address}

Nothing was using these. These can be put back in the future if
required. This also allows removing the devices array in UHCI.

Kernel/Bus/USB/UHCIController.cpp

@@ -254,27 +254,6 @@ UNMAP_AFTER_INIT UHCIController::~UHCIController()
 {
 }
 
-RefPtr<USB::Device> const UHCIController::get_device_at_port(USB::Device::PortNumber port)
-{
-    if (!m_devices.at(to_underlying(port)))
-        return nullptr;
-
-    return m_devices.at(to_underlying(port));
-}
-
-RefPtr<USB::Device> const UHCIController::get_device_from_address(u8 device_address)
-{
-    for (auto const& device : m_devices) {
-        if (!device)
-            continue;
-
-        if (device->address() == device_address)
-            return device;
-    }
-
-    return nullptr;
-}
-
 KResult UHCIController::reset()
 {
     if (auto stop_result = stop(); stop_result.is_error())

Kernel/Bus/USB/UHCIController.h

@@ -42,9 +42,6 @@ public:
 
     virtual KResultOr<size_t> submit_control_transfer(Transfer& transfer) override;
 
-    virtual RefPtr<USB::Device> const get_device_at_port(USB::Device::PortNumber) override;
-    virtual RefPtr<USB::Device> const get_device_from_address(u8 device_address) override;
-
     void get_port_status(Badge<UHCIRootHub>, u8, HubStatus&);
     KResult set_port_feature(Badge<UHCIRootHub>, u8, HubFeatureSelector);
     KResult clear_port_feature(Badge<UHCIRootHub>, u8, HubFeatureSelector);
@@ -109,8 +106,6 @@ private:
 
     // Bitfield containing whether a given port should signal a change in suspend or not.
     u8 m_port_suspend_change_statuses { 0 };
-
-    Array<RefPtr<USB::Device>, NUMBER_OF_ROOT_PORTS> m_devices; // Devices connected to the root ports (of which there are two)
 };
 
 }

Kernel/Bus/USB/USBController.h

@@ -25,9 +25,6 @@ public:
 
     virtual KResultOr<size_t> submit_control_transfer(Transfer&) = 0;
 
-    virtual RefPtr<USB::Device> const get_device_at_port(USB::Device::PortNumber) = 0;
-    virtual RefPtr<USB::Device> const get_device_from_address(u8) = 0;
-
     u8 allocate_address();
 
 private: