Revert "Set priority on should_unset_flag_on_failed_agreement to 1"

This reverts commit d962bf6.

Author: avelanarius

driver-core/src/test/java/com/datastax/driver/core/SchemaAgreementTest.java

@@ -47,7 +47,7 @@ public void should_set_flag_on_non_schema_altering_statement() {
     assertThat(rs.getExecutionInfo().isSchemaInAgreement()).isTrue();
   }
 
-  @Test(groups = "short", priority = 1)
+  @Test(groups = "short")
   public void should_unset_flag_on_failed_agreement() {
     // Setting to 0 results in no query being set, so agreement fails
     ProtocolOptions protocolOptions = cluster().getConfiguration().getProtocolOptions();