Remove unused imports

Author: otethal

graalpython/com.oracle.graal.python.pegparser.generator/pegjava/java_generator.py

@@ -428,12 +428,7 @@ def __str__(self) -> str:
 import com.oracle.graal.python.pegparser.tokenizer.Token;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.HashSet;
 import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
 '''
 
 TRAILER = '''

graalpython/com.oracle.graal.python.pegparser.test/src/com/oracle/graal/python/pegparser/sst/SSTTreePrinterVisitor.java

@@ -40,8 +40,6 @@
  */
 package com.oracle.graal.python.pegparser.sst;
 
-import java.math.BigInteger;
-
 public class SSTTreePrinterVisitor implements SSTreeVisitor<String> {
 
     private static final String INDENTATION = "    ";

graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/Parser.java

@@ -49,12 +49,7 @@
 import com.oracle.graal.python.pegparser.tokenizer.Token;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.HashSet;
 import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
 
 @SuppressWarnings({"all", "cast"})
 public final class Parser extends AbstractParser {