Without UUs and UBs, clearly Sury as his UU an UB are his main drawbacks (along with hunting).
CRE + EXP are a top economic combination, faster libraries, free border pops, faster granaries, workers, +2

per city.
Following Sury:
Mehmed (EXP + ORG) - Already has a very powerful UU and UB, so these would be missed. Takes longer to get libraries built and border pops, but with how many other cheap buildings you get it is easily compensated.
Zara Yaqob (CRE + ORG) - His UB is trash which is why I never play him, so removing UUs and UBs would make him a lot better
Willem (CRE + FIN) - Fast libraries and border pops combined with more gold.
Pericles (CRE + PHI) - Fast libraries and fast Great Scientists, very powerful trait combination.
Darius (FIN + ORG) - has the most potential GPT savings, but no decent

bonuses until Courthouses, and Lighthouses are rarely useful as land tiles are better early in the game, unless you have multiple seafood tiles.
If you don't use a strategy that takes advantage of the philo trait, then you're just not very good.
The thing is though that Philo is very overrated. You can pull off 2-3 GSs very early using Creative. In order to get GSs you need scientists, and CRE gets them faster. Pericles would be the strongest leader to play for these reasons if pursuing a GP strategy, otherwise I wouldnt really feel any more advantaged with PHI if I had to lose CRE to get it.