Update description for the following properties for SQL MI ARM REST A… (

#31080)

* Update description for the following properties for SQL MI ARM REST API: vCores, StorageSizeInGb and zoneRedudant, and update description of parameter sku. Hide totalMemoryMb parameter from older api versions, as it will not be used, and hasn't been used.

* Add aka.ms link to the MemorySizeInGB properties parameter

* Just keep my changes of the removed totalMemoryMb paramter, the rest is reverted.

specification/sql/resource-manager/Microsoft.Sql/preview/2023-08-01-preview/ManagedInstances.json

@@ -1114,11 +1114,6 @@
           "description": "Storage throughput MBps parameter is not supported in the instance create/update operation.",
           "type": "integer"
         },
-        "totalMemoryMB": {
-          "format": "int32",
-          "description": "Total memory in MB. Minimum value: 7168. Maximum value: 891328. Increments of 1 MB allowed only. Maximum value depends on the selected hardware family and number of vCores.",
-          "type": "integer"
-        },
         "collation": {
           "description": "Collation of the managed instance.",
           "type": "string",

specification/sql/resource-manager/Microsoft.Sql/preview/2024-05-01-preview/ManagedInstances.json

@@ -1114,11 +1114,6 @@
           "description": "Storage throughput MBps parameter is not supported in the instance create/update operation.",
           "type": "integer"
         },
-        "totalMemoryMB": {
-          "format": "int32",
-          "description": "Total memory in MB. Minimum value: 7168. Maximum value: 891328. Increments of 1 MB allowed only. Maximum value depends on the selected hardware family and number of vCores.",
-          "type": "integer"
-        },
         "collation": {
           "description": "Collation of the managed instance.",
           "type": "string",