remove excess development comments

Author: rfiorella

components/elm/src/biogeochem/VegStructUpdateMod.F90

@@ -247,9 +247,6 @@ subroutine VegStructUpdate(num_soilp, filter_soilp, &
             !depth of snow required for complete burial of grasses
          endif
 
-         ! RPF - fb above had previously been f exposed,
-         ! in contrast to definition in declaration statements
-         ! so modifying fb defs and elai/esai statements
          elai(p) = max(tlai(p)*(1._r8 - fb), 0.0_r8)
          esai(p) = max(tsai(p)*(1._r8 - fb), 0.0_r8)