* fix: duplicate or single-token remove-liquidity routes should show error page

* use maxUint256 for nonexistent pool

* move tests back to rem-liq

* rename pooled token id

* nit: use uni address from sdk core

* nit: use maxuint256 from sdk core

* nit: use liqudityValue for doublecurrencylogo

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Co-authored-by: Kristie Huang <kristie.huang@uniswap.org>