alpha: remove duplicate included header file

alpha: remove duplicate included header file

Remove duplicate included header file asm/fpu.h

Link: https://lkml.kernel.org/r/20241126114728.139029-1-thorsten.blum@linux.dev
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>