freedreno/rnn: Remove %n usage in fprintf

fprintf was utilized with %n to count the amount of characters it
outputted but this was redundant since it was at the end of the
statement and fprintf itself returns the amount of characters it
writes out.

It should be noted that %n is a compatibility hazard on Android as
it isn't supported on Android due to security reasons.

Signed-off-by: Mark Collins <mark@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25005>
1 file changed