remove authority host as user param

Author: Cheruvu.Sahithee.Vaibhav@ibm.com

plugins/out_azure_blob/azure_blob.c

@@ -1421,17 +1421,6 @@ static int cb_azure_blob_init(struct flb_output_instance *ins,
     if (ctx->atype == AZURE_BLOB_AUTH_SERVICE_PRINCIPAL) {
         pthread_mutex_init(&ctx->token_mutex, NULL);
         flb_sds_t token_url;
-        const char *authority_host;
-        size_t authority_len;
-
-        authority_host = ctx->azure_authority_host ?
-                         ctx->azure_authority_host :
-                         AZURE_BLOB_DEFAULT_AUTHORITY_HOST;
-
-        authority_len = strlen(authority_host);
-        if (authority_len > 0 && authority_host[authority_len - 1] == '/') {
-            authority_len--;
-        }
 
         token_url = flb_sds_create_size(256);
         if (!token_url) {
@@ -1440,8 +1429,8 @@ static int cb_azure_blob_init(struct flb_output_instance *ins,
         }
 
         ret = flb_sds_snprintf(&token_url, flb_sds_alloc(token_url),
-                              "%.*s/%s/oauth2/v2.0/token",
-                              (int)authority_len, authority_host, ctx->tenant_id);
+                              "%s/%s/oauth2/v2.0/token",
+                              AZURE_BLOB_DEFAULT_AUTHORITY_HOST, ctx->tenant_id);
         if (ret < 0) {
             flb_plg_error(ctx->ins, "failed to build token URL");
             flb_sds_destroy(token_url);
@@ -2589,12 +2578,6 @@ static struct flb_config_map config_map[] = {
      "Azure AD client secret (required for service_principal auth)"
     },
 
-    {
-     FLB_CONFIG_MAP_STR, "azure_authority_host", "https://login.microsoftonline.com",
-     0, FLB_TRUE, offsetof(struct flb_azure_blob, azure_authority_host),
-     "Azure authority host for OAuth2 token endpoint (optional, defaults to https://login.microsoftonline.com)"
-    },
-
     {
      FLB_CONFIG_MAP_STR, "database_file", NULL,
      0, FLB_TRUE, offsetof(struct flb_azure_blob, database_file),

plugins/out_azure_blob/azure_blob.h

@@ -81,7 +81,6 @@ struct flb_azure_blob {
     flb_sds_t tenant_id;
     flb_sds_t client_id;
     flb_sds_t client_secret;
-    flb_sds_t azure_authority_host;
     flb_sds_t database_file;
     size_t part_size;
     time_t upload_parts_timeout;