Change intra_substitutionCS_isomerization to no longer its own reverse

As discovered by ReactionMechanismGenerator/RMG-Py#382

Author: connie

databases/RMG_database/kinetics_groups/intra_substitutionCS_isomerization/reactionAdjList.txt

@@ -8,10 +8,10 @@
 
 // f01 Intramolecular substitution on S
 
-XSYJ -> XSYJ
-
-thermo_consistence:
+XSYJ -> XYSJ
 
+forward
+reverse(f27): isomerization_CS
 
 Actions 1
 (1) BREAK_BOND		{*1,S,*2}