Remove unused acquireIncrement

src/test/java/com/zaxxer/hikari/CreationTest.java

@@ -85,7 +85,6 @@ public class CreationTest
         HikariConfig config = new HikariConfig();
         config.setMinimumPoolSize(1);
         config.setMaximumPoolSize(1);
-        config.setAcquireIncrement(1);
         config.setConnectionTestQuery("VALUES 1");
         config.setDataSourceClassName("com.zaxxer.hikari.mocks.StubDataSource");