Remove jdk 1.7 specific method, as we're still on jdk 1.6

Author: gnodet

src/test/java/org/fusesource/jansi/EncodingTest.java

@@ -18,6 +18,7 @@
 import java.io.ByteArrayOutputStream;
 import java.io.PrintStream;
 import java.io.UnsupportedEncodingException;
+import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
 import java.util.concurrent.atomic.AtomicReference;
 
@@ -40,7 +41,7 @@ public void testEncoding8859() throws UnsupportedEncodingException {
             protected void processChangeWindowTitle(String label) {
                 newLabel.set(label);
             }
-        }, AnsiProcessorType.Emulation, StandardCharsets.ISO_8859_1, null, null, false), true, "ISO-8859-1");
+        }, AnsiProcessorType.Emulation, Charset.forName("ISO-8859-1"), null, null, false), true, "ISO-8859-1");
 
         ansi.print("\033]0;un bon café\007");
         ansi.flush();
@@ -56,7 +57,7 @@ public void testEncodingUtf8() throws UnsupportedEncodingException {
             protected void processChangeWindowTitle(String label) {
                 newLabel.set(label);
             }
-        }, AnsiProcessorType.Emulation, StandardCharsets.UTF_8, null, null, false), true, "UTF-8");
+        }, AnsiProcessorType.Emulation, Charset.forName("UTF-8"), null, null, false), true, "UTF-8");
 
         ansi.print("\033]0;ひらがな\007");
         ansi.flush();