The transformer does _not_ check for use via reflection. The only cases
in the 550 and OSRS clients where methods are accessed via reflection
are either 1) JRE classes, 2) when the method name is sent from the
server.
PSVM and methods declared in TypedRemapper.EXCLUDED_METHODS are never
removed.
Signed-off-by: Major <major@emulate.rs>
Calling super.write(byte[], int, int) in FilterOutputStream didn't work,
as it called super.write(byte). This is inefficient and also caused us
to fiddle with skipBytes twice, causing us to skip the incorrect number
of bytes.