Remove BETA Disclaimers in Java 26 (#906)

Remove BETA_JAVA26 disclaimers from the BETA branch.

Fixes : #901

Author: SougandhS

org.eclipse.jdt.debug.tests/test plugin/org/eclipse/jdt/debug/testplugin/JavaProjectHelper.java

@@ -8,10 +8,6 @@
  *
  *  SPDX-License-Identifier: EPL-2.0
  *
- *  This is an implementation of an early-draft specification developed under the Java
- *  Community Process (JCP) and is made available for testing and evaluation purposes
- *  only. The code is not compatible with any specification of the JCP.
- *
  *  Contributors:
  *     IBM Corporation - initial API and implementation
  *     Jesper S. Møller - bug 422029: [1.8] Enable debug evaluation support for default methods

org.eclipse.jdt.debug.tests/tests/org/eclipse/jdt/debug/tests/AbstractDebugTest.java

@@ -8,10 +8,6 @@
  *
  * SPDX-License-Identifier: EPL-2.0
  *
- * This is an implementation of an early-draft specification developed under the Java
- * Community Process (JCP) and is made available for testing and evaluation purposes
- * only. The code is not compatible with any specification of the JCP.
- *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *     Jesper Steen Møller - bug 422029: [1.8] Enable debug evaluation support for default methods

org.eclipse.jdt.debug.tests/tests/org/eclipse/jdt/debug/tests/AutomatedSuite.java

@@ -8,10 +8,6 @@
  *
  * SPDX-License-Identifier: EPL-2.0
  *
- * This is an implementation of an early-draft specification developed under the Java
- * Community Process (JCP) and is made available for testing and evaluation purposes
- * only. The code is not compatible with any specification of the JCP.
- *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *     SAP SE - Support hyperlinks for stack entries with method signature

org.eclipse.jdt.debug.tests/tests/org/eclipse/jdt/debug/tests/core/ModuleOptionsTests.java

@@ -8,10 +8,6 @@
  *
  * SPDX-License-Identifier: EPL-2.0
  *
- * This is an implementation of an early-draft specification developed under the Java
- * Community Process (JCP) and is made available for testing and evaluation purposes
- * only. The code is not compatible with any specification of the JCP.
- *
  * Contributors:
  *     Stephan Herrmann - initial API and implementation
  *     IBM Corporation - bug fixes

org.eclipse.jdt.debug.tests/tests/org/eclipse/jdt/debug/tests/launching/InstanceMainMethodsTests.java

@@ -8,10 +8,6 @@
  *
  * SPDX-License-Identifier: EPL-2.0
  *
- * This is an implementation of an early-draft specification developed under the Java
- * Community Process (JCP) and is made available for testing and evaluation purposes
- * only. The code is not compatible with any specification of the JCP.
- *
  * Contributors:
  *     Red Hat Inc. - initial implementation
  *******************************************************************************/

org.eclipse.jdt.debug/model/org/eclipse/jdt/debug/core/IJavaThread.java

@@ -8,10 +8,6 @@
  *
  * SPDX-License-Identifier: EPL-2.0
  *
- * This is an implementation of an early-draft specification developed under the Java
- * Community Process (JCP) and is made available for testing and evaluation purposes
- * only. The code is not compatible with any specification of the JCP.
- *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/

org.eclipse.jdt.launching/launching/org/eclipse/jdt/internal/launching/environments/ExecutionEnvironmentAnalyzer.java

@@ -8,10 +8,6 @@
  *
  * SPDX-License-Identifier: EPL-2.0
  *
- * This is an implementation of an early-draft specification developed under the Java
- * Community Process (JCP) and is made available for testing and evaluation purposes
- * only. The code is not compatible with any specification of the JCP.
- *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *