resource/aws_ses_receipt_rule: Fixes for tfproviderlint R002

Reference: #9952

Remove pointer value dereferences, which can cause potential panics and are extraneous as `Set()` automatically handles pointer types including when `nil`.

Previously:

```
aws/resource_aws_ses_receipt_rule.go:450:19: R002: ResourceData.Set() pointer value dereference is extraneous
aws/resource_aws_ses_receipt_rule.go:452:24: R002: ResourceData.Set() pointer value dereference is extraneous
aws/resource_aws_ses_receipt_rule.go:453:22: R002: ResourceData.Set() pointer value dereference is extraneous
```

Output from acceptance testing:

```
--- PASS: TestAccAWSSESReceiptRule_actions (18.64s)
--- PASS: TestAccAWSSESReceiptRule_basic (19.07s)
--- PASS: TestAccAWSSESReceiptRule_order (22.13s)
--- PASS: TestAccAWSSESReceiptRule_s3Action (36.32s)
```

aws/resource_aws_ses_receipt_rule.go

@@ -447,10 +447,10 @@ func resourceAwsSesReceiptRuleRead(d *schema.ResourceData, meta interface{}) err
 		}
 	}
 
-	d.Set("enabled", *response.Rule.Enabled)
+	d.Set("enabled", response.Rule.Enabled)
 	d.Set("recipients", flattenStringList(response.Rule.Recipients))
-	d.Set("scan_enabled", *response.Rule.ScanEnabled)
-	d.Set("tls_policy", *response.Rule.TlsPolicy)
+	d.Set("scan_enabled", response.Rule.ScanEnabled)
+	d.Set("tls_policy", response.Rule.TlsPolicy)
 
 	addHeaderActionList := []map[string]interface{}{}
 	bounceActionList := []map[string]interface{}{}