Remove Hikari from 3rd party hints

We now use the metadata included in from graalvm-reachability-metadata.

Closes gh-87

data-jdbc-postgresql/build.gradle

@@ -8,7 +8,6 @@ plugins {
 dependencies {
 	implementation(platform(org.springframework.boot.gradle.plugin.SpringBootPlugin.BOM_COORDINATES))
 	implementation("org.springframework.boot:spring-boot-starter-data-jdbc")
-	implementation(project(":aot-smoke-test-third-party-hints"))
 	runtimeOnly("org.postgresql:postgresql")
 
 	testImplementation("org.springframework.boot:spring-boot-starter-test")

data-jdbc-postgresql/src/main/java/com/example/data/jdbc/postgresql/DataJdbcPostgreSQLApplication.java

@@ -1,12 +1,9 @@
 package com.example.data.jdbc.postgresql;
 
-import org.springframework.aot.smoketest.thirdpartyhints.HikariRuntimeHints;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.context.annotation.ImportRuntimeHints;
 
 @SpringBootApplication
-@ImportRuntimeHints(HikariRuntimeHints.class)
 public class DataJdbcPostgreSQLApplication {
 
 	public static void main(String[] args) throws InterruptedException {