Drivers: hv: Remove deprecated hv_fcopy declarations

Drivers: hv: Remove deprecated hv_fcopy declarations

There are lingering hv_fcopy declarations which do not have definitions.
The fcopy driver was removed in commit ec314f61e4fc ("Drivers: hv: Remove
fcopy driver").

Therefore, remove the hv_fcopy declarations which are no longer needed
or defined.

Fixes: ec314f61e4fc ("Drivers: hv: Remove fcopy driver")
Signed-off-by: Rachel Menge <rachelmenge@linux.microsoft.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Link: https://lore.kernel.org/r/20240620225040.700563-1-rachelmenge@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20240620225040.700563-1-rachelmenge@linux.microsoft.com>