fix: Examples Adjustments (terraform-aws-modules#2)

* fix examples by adding kms key and setting backup retention

* fix examples mssql storage_encryption and oracle param and option group engines

* fix examples mssql add a comment for storage encryption set to false

examples/complete-oracle/main.tf

@@ -123,7 +123,6 @@ provider "aws" {
  region = local.region2
 }
 
-<<<<<<< HEAD
 module "kms" {
  source = "terraform-aws-modules/kms/aws"
  version = "~> 1.0"
@@ -133,25 +132,18 @@ module "kms" {
  aliases = [local.name]
  aliases_use_name_prefix = true
 
- key_owners = [local.current_identity]
-
  tags = local.tags
 
  providers = {
  aws = aws.region2
  }
 }
 
-=======
->>>>>>> adding db_instance_automated_backups_replication (#1)
 module "db_automated_backups_replication" {
  source = "../../modules/db_instance_automated_backups_replication"
 
  source_db_instance_arn = module.db.db_instance_arn
-<<<<<<< HEAD
  kms_key_arn = module.kms.key_arn
-=======
->>>>>>> adding db_instance_automated_backups_replication (#1)
 
  providers = {
  aws = aws.region2

examples/complete-postgres/main.tf

@@ -178,7 +178,6 @@ provider "aws" {
  region = local.region2
 }
 
-<<<<<<< HEAD
 module "kms" {
  source = "terraform-aws-modules/kms/aws"
  version = "~> 1.0"
@@ -188,25 +187,18 @@ module "kms" {
  aliases = [local.name]
  aliases_use_name_prefix = true
 
- key_owners = [local.current_identity]
-
  tags = local.tags
 
  providers = {
  aws = aws.region2
  }
 }
 
-=======
->>>>>>> adding db_instance_automated_backups_replication (#1)
 module "db_automated_backups_replication" {
  source = "../../modules/db_instance_automated_backups_replication"
 
  source_db_instance_arn = module.db.db_instance_arn
-<<<<<<< HEAD
  kms_key_arn = module.kms.key_arn
-=======
->>>>>>> adding db_instance_automated_backups_replication (#1)
 
  providers = {
  aws = aws.region2