Revert "Add a separate import group for jakarta imports"

This reverts commit 3076583.

Closes gh-301

Author: philwebb

spring-javaformat-eclipse/io.spring.javaformat.eclipse/src/io/spring/javaformat/eclipse/projectsettings/org.eclipse.jdt.ui.prefs

@@ -64,7 +64,7 @@ formatter_settings_version=13
 org.eclipse.jdt.ui.exception.name=e
 org.eclipse.jdt.ui.gettersetter.use.is=true
 org.eclipse.jdt.ui.ignorelowercasenames=true
-org.eclipse.jdt.ui.importorder=java;javax;jakarta;;org.springframework;\#;
+org.eclipse.jdt.ui.importorder=java;javax;;org.springframework;\#;
 org.eclipse.jdt.ui.javadoc=true
 org.eclipse.jdt.ui.keywordthis=false
 org.eclipse.jdt.ui.ondemandthreshold=9999

spring-javaformat/spring-javaformat-checkstyle/src/main/java/io/spring/javaformat/checkstyle/check/SpringImportOrderCheck.java

@@ -39,7 +39,7 @@ public SpringImportOrderCheck() {
 	}
 
 	public void setProjectRootPackage(String projectRootPackage) {
-		setGroups("java", "/^javax?\\./", "/^jakarta?\\./", "*", projectRootPackage);
+		setGroups("java", "/^javax?\\./", "*", projectRootPackage);
 	}
 
 }