CCPP framework only allows standard names as dimension indices (ESCOMP#264)

Originator(s): peverwhee

Description (include issue title and the keyword ['closes', 'fixes',
'resolves'] and issue number):
With the new CCPP-framework updates, we can no longer use integer
dimension indices (like 1:horizontal_loop_extent).

This PR removes a couple of those.

List all namelist files that were added or changed: N/A

List all files eliminated and why: N/A

List all files added and what they do: N/A

List all existing files that have been modified, and describe the
changes:
(Helpful git command: `git diff --name-status
development...<your_branch_name>`)

M   schemes/sima_diagnostics/zm_diagnostics.meta
M   schemes/sima_diagnostics/zm_evap_tendency_diagnostics.meta
- remove "1:" in metadata dimensions

List all automated tests that failed, as well as an explanation for why
they weren't fixed: N/A

Is this an answer-changing PR? If so, is it a new physics package,
algorithm change, tuning change, etc? No.

If yes to the above question, describe how this code was validated with
the new/modified features:

Author: peverwhee

schemes/sima_diagnostics/zm_diagnostics.meta

@@ -57,7 +57,7 @@
   standard_name = lwe_precipitation_rate_at_surface_due_to_deep_convection
   units = m s-1
   type = real | kind = kind_phys
-  dimensions = (1:horizontal_loop_extent)
+  dimensions = (horizontal_loop_extent)
   intent = in
 [ cape ]
   standard_name = zhang_mcfarlane_convective_available_potential_energy

schemes/sima_diagnostics/zm_evap_tendency_diagnostics.meta

@@ -63,7 +63,7 @@
   standard_name = tendency_of_dry_air_enthalpy_at_constant_pressure
   units = J kg-1 s-1
   type = real | kind = kind_phys
-  dimensions = (1:horizontal_loop_extent,1:vertical_layer_dimension)
+  dimensions = (horizontal_loop_extent,vertical_layer_dimension)
   intent = in
 [ errmsg ]
   standard_name = ccpp_error_message