Remove some warnings

Author: fornwall

src/main/java/net/fornwall/jelf/BackingFile.java

@@ -1,15 +1,10 @@
 package net.fornwall.jelf;
 
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.nio.Buffer;
-import java.nio.MappedByteBuffer;
-
 interface BackingFile {
 
-    public void seek(long offset);
-    public void skip(int bytesToSkip);
+    void seek(long offset);
+    void skip(int bytesToSkip);
     short readUnsignedByte();
-    public int read(byte[] data);
+    int read(byte[] data);
 
 }

src/main/java/net/fornwall/jelf/ByteArrayAsFile.java

@@ -2,8 +2,6 @@
 
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
-import java.nio.Buffer;
-import java.nio.MappedByteBuffer;
 
 class ByteArrayAsFile implements BackingFile{
     private final ByteArrayInputStream byteArray;

src/main/java/net/fornwall/jelf/ElfFile.java

@@ -1,13 +1,11 @@
 package net.fornwall.jelf;
 
-import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.MappedByteBuffer;
-import java.nio.channels.FileChannel;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -508,11 +506,11 @@ public static ElfFile from(File file) throws ElfException, IOException {
         return from(buffer);
     }
 
-    public static ElfFile from(byte[] buffer) throws ElfException, IOException {
+    public static ElfFile from(byte[] buffer) throws ElfException {
         return new ElfFile(new ByteArrayAsFile(buffer));
     }
 
-    public static ElfFile from(MappedByteBuffer mappedByteBuffer) throws ElfException, IOException {
+    public static ElfFile from(MappedByteBuffer mappedByteBuffer) throws ElfException {
         return new ElfFile(new MappedFile(mappedByteBuffer));
     }
 

src/main/java/net/fornwall/jelf/MappedFile.java

@@ -1,8 +1,5 @@
 package net.fornwall.jelf;
 
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.nio.Buffer;
 import java.nio.MappedByteBuffer;
 import java.nio.ByteBuffer;