update BigqueryDatapolicy to ga (#6797) (#381)

Signed-off-by: Modular Magician <magic-modules@google.com>

bigquery_datapolicy_data_policy_basic/main.tf

@@ -1,20 +1,17 @@
 resource "google_bigquery_datapolicy_data_policy" "data_policy" {
-    provider = google-beta
     location         = "us-central1"
     data_policy_id   = "data_policy-${local.name_suffix}"
     policy_tag       = google_data_catalog_policy_tag.policy_tag.name
     data_policy_type = "COLUMN_LEVEL_SECURITY_POLICY"
   }
 
   resource "google_data_catalog_policy_tag" "policy_tag" {
-    provider = google-beta
     taxonomy     = google_data_catalog_taxonomy.taxonomy.id
     display_name = "Low security"
     description  = "A policy tag normally associated with low security items"
   }
 
   resource "google_data_catalog_taxonomy" "taxonomy" {
-    provider = google-beta
     region                 = "us-central1"
     display_name           = "taxonomy-${local.name_suffix}"
     description            = "A collection of policy tags"