Style fix.

Author: christianhaeubl

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/headers/LibC.java

@@ -35,8 +35,6 @@
 
 import jdk.graal.compiler.api.replacements.Fold;
 
-import jdk.graal.compiler.api.replacements.Fold;
-
 /** Platform-independent LibC support. */
 public class LibC {
     public static final int EXIT_CODE_ABORT = 99;

substratevm/src/com.oracle.svm.test/src/com/oracle/svm/test/nmt/NativeMemoryTrackingTests.java

@@ -39,7 +39,6 @@
 
 public class NativeMemoryTrackingTests {
     private static final int ALLOCATION_SIZE = 1024 * 16;
-    private static final int RESERVE_SIZE = ALLOCATION_SIZE;
     private static final int REALLOC_SIZE = ALLOCATION_SIZE / 2;
 
     @Test