refactor: remove Redshift sortKey/distStyle/distKey from workspace load request

These parameters were only used by Redshift which has been removed.
Datadog shows zero usage over 30 days. Legacy InputMappingDefinition
still accepts them for backward compatibility.

Author: vojtabiberle

apiary.apib

@@ -5101,13 +5101,6 @@ Loads tables from Storage into a Workspace. BigQuery supports only loading as vi
                             + ne - Not equal to
                         + Default: eq
                     + whereFilters (optional, array[WhereFiltersObject])
-                    + sortKey[] (optional, array) - Redshift only - Column(s) to be used as a sort key
-                    + distStyle (optional, enum[string]) - Redshift only - Distribution style (even, all, or key)
-                        + Members
-                            + even
-                            + all
-                            + key
-                    + distKey (optional) - Redshift only - Column to use for the key distribution style
                     + incremental (optional, boolean) - Rows will be appended to an existing table, not supported in file workspaces (load is always full)
                         Default: false
                     + overwrite (optional, boolean) - When preserve is true duplicate tables will be overwritten
@@ -5249,13 +5242,6 @@ Loads tables from Storage into a Workspace in [Development Branch](#reference/de
                             + ne - Not equal to
                         + Default: eq
                     + whereFilters (optional, array[WhereFiltersObject])
-                    + sortKey[] (optional, array) - Redshift only - Column(s) to be used as a sort key
-                    + distStyle (optional, enum[string]) - Redshift only - Distribution style (even, all, or key)
-                        + Members
-                            + even
-                            + all
-                            + key
-                    + distKey (optional) - Redshift only - Column to use for the key distribution style
                     + incremental (optional, boolean) - Rows will be appended to an existing table, not supported in file workspaces (load is always full)
                         Default: false
                     + overwrite (optional, boolean) - When preserve is true duplicate tables will be overwritten