Update src/stdlib_hashmaps.f90

Co-authored-by: Jeremie Vandenplas <jeremie.vandenplas@gmail.com>

Author: chuckyvt

src/stdlib_hashmaps.f90

@@ -105,7 +105,6 @@ module stdlib_hashmaps
 !! Hash function
 
     contains
-    
         procedure, non_overridable, pass(map) :: calls
         procedure, non_overridable, pass(map) :: entries
         procedure, non_overridable, pass(map) :: map_probes