revert low max_htlc_value_in_flight_msat, fix test

spec does not mention that there can be an upper bound
on max_htlc_value_in_flight_msat, so don't try to make
any node happy that has a max limit on this.

electrum/lnbase.py

@@ -402,7 +402,7 @@ class Peer(PrintError):
             revocation_basepoint=keypair_generator(LnKeyFamily.REVOCATION_BASE),
             to_self_delay=9,
             dust_limit_sat=546,
-            max_htlc_value_in_flight_msat=200000000,
+            max_htlc_value_in_flight_msat=0xffffffffffffffff,
             max_accepted_htlcs=5,
             initial_msat=initial_msat,
             ctn=-1,

electrum/tests/test_lnchan.py

@@ -59,6 +59,7 @@ def create_channel_state(funding_txid, funding_index, funding_sat, local_feerate
                 ctn = -1,
                 next_htlc_id = 0,
                 reserve_sat=0,
+                htlc_minimum_msat=1,
 
                 next_per_commitment_point=nex,
                 current_per_commitment_point=cur,