Remove check for old gradle version

see #29681

Author: larsgrefer

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/plugin/JavaPluginAction.java

@@ -47,7 +47,6 @@
 import org.gradle.api.tasks.compile.JavaCompile;
 import org.gradle.jvm.toolchain.JavaToolchainService;
 import org.gradle.jvm.toolchain.JavaToolchainSpec;
-import org.gradle.util.GradleVersion;
 
 import org.springframework.boot.gradle.tasks.bundling.BootBuildImage;
 import org.springframework.boot.gradle.tasks.bundling.BootJar;
@@ -158,15 +157,9 @@ private void configureBootRunTask(Project project) {
 	}
 
 	private void configureToolchainConvention(Project project, BootRun run) {
-		if (isGradle67OrLater()) {
-			JavaToolchainSpec toolchain = project.getExtensions().getByType(JavaPluginExtension.class).getToolchain();
-			JavaToolchainService toolchainService = project.getExtensions().getByType(JavaToolchainService.class);
-			run.getJavaLauncher().convention(toolchainService.launcherFor(toolchain));
-		}
-	}
-
-	private boolean isGradle67OrLater() {
-		return GradleVersion.current().getBaseVersion().compareTo(GradleVersion.version("6.7")) >= 0;
+		JavaToolchainSpec toolchain = project.getExtensions().getByType(JavaPluginExtension.class).getToolchain();
+		JavaToolchainService toolchainService = project.getExtensions().getByType(JavaToolchainService.class);
+		run.getJavaLauncher().convention(toolchainService.launcherFor(toolchain));
 	}
 
 	private JavaPluginConvention javaPluginConvention(Project project) {