refactor: rename better_varmap_to_vars to varmap_to_vars

Author: AayushSabharwal

src/systems/problem_utils.jl

@@ -363,7 +363,7 @@ Keyword arguments:
 - `substitution_limit`: The maximum number of times to substitute `varmap` into itself to
   obtain numerical values for the variables in `vars`.
 """
-function better_varmap_to_vars(varmap::AbstractDict, vars::Vector;
+function varmap_to_vars(varmap::AbstractDict, vars::Vector;
         tofloat = true, container_type = Array, floatT = Nothing,
         toterm = default_toterm, promotetoconcrete = nothing, check = true,
         allow_symbolic = false, is_initializeprob = false, substitution_limit = 1000)