revert: use ARM_64 architecture for Lambda handler (#245)

Fixes #244

Reverts #102

---

_By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license_

Author: Eugene Cheung

lib/dashboard/widget/BitmapWidget.ts

@@ -3,13 +3,7 @@ import * as path from "path";
 import { Duration, Tags } from "aws-cdk-lib";
 import { IWidget } from "aws-cdk-lib/aws-cloudwatch";
 import { Effect, PolicyStatement } from "aws-cdk-lib/aws-iam";
-import {
-  Architecture,
-  Code,
-  Function,
-  IFunction,
-  Runtime,
-} from "aws-cdk-lib/aws-lambda";
+import { Code, Function, IFunction, Runtime } from "aws-cdk-lib/aws-lambda";
 import { RetentionDays } from "aws-cdk-lib/aws-logs";
 import { Construct } from "constructs";
 
@@ -41,7 +35,6 @@ export class BitmapWidgetRenderingSupport extends Construct {
       handler: "index.handler",
       memorySize: 128,
       runtime: Runtime.NODEJS_14_X,
-      architecture: Architecture.ARM_64,
       timeout: Duration.seconds(60),
       logRetention: RetentionDays.ONE_DAY,
     });

lib/monitoring/aws-secretsmanager/SecretsManagerMetricsPublisher.ts

@@ -4,13 +4,7 @@ import { Duration, Names } from "aws-cdk-lib";
 import { Rule, RuleTargetInput, Schedule } from "aws-cdk-lib/aws-events";
 import { LambdaFunction } from "aws-cdk-lib/aws-events-targets";
 import { Effect, PolicyStatement } from "aws-cdk-lib/aws-iam";
-import {
-  Architecture,
-  Code,
-  Function,
-  IFunction,
-  Runtime,
-} from "aws-cdk-lib/aws-lambda";
+import { Code, Function, IFunction, Runtime } from "aws-cdk-lib/aws-lambda";
 import { RetentionDays } from "aws-cdk-lib/aws-logs";
 import { ISecret } from "aws-cdk-lib/aws-secretsmanager";
 import { Construct } from "constructs";
@@ -41,7 +35,6 @@ export class SecretsManagerMetricsPublisher extends Construct {
       handler: "index.handler",
       memorySize: 128,
       runtime: Runtime.NODEJS_14_X,
-      architecture: Architecture.ARM_64,
       timeout: Duration.seconds(60),
       logRetention: RetentionDays.ONE_DAY,
     });