N/A Daisy 853 expert i have a question

i have had a 853 for years one of those rifles that i bid on with the hope i would lose no luck there
i got it out a few weeks back to do something with it and notice the safety did not feel right and it did not have the spring and ball easy fix i have that stuff on hand
so i had a chance to re assemble the trigger housing and that went okay and then installed the sear spring easy enough
but thought maybe i could get a lighter spring and found a replacement and then tested the trigger without it all together no spring
trigger works fine without it and it is a bit lighter
so the hammer spring resets the sear and the sear spring does what
is the sear spring even needed as of now i would say no
opinions please