removed unit test classes - not needed really

src/test/java/com/xeiam/xchart/unit/TestNumberCollection.java

-package com.xeiam.xchart.unit;
-
-import static org.hamcrest.CoreMatchers.equalTo;
-import static org.hamcrest.CoreMatchers.is;
-import static org.hamcrest.CoreMatchers.not;
-import static org.hamcrest.MatcherAssert.assertThat;
-
-import org.junit.Test;
-
-/**
- * @author timmolter
- * @create Aug 14, 2012
- */
-public class TestNumberCollection {
-
-  @Test
-  public void testNumber2double() {
-
-    Number myInteger = new Integer(688);
-    assertThat(myInteger.doubleValue(), is(equalTo(new Double(688).doubleValue())));
-
-    Number myLong = new Long(976320011);
-    assertThat(myLong.doubleValue(), is(equalTo(new Long(976320011).doubleValue())));
-
-    Number myFloat = new Float(95.4765217889);
-    assertThat(myFloat.doubleValue(), is(equalTo(new Float(95.4765217889).doubleValue())));
-
-    Number myDouble = new Double(33.2);
-    assertThat(myDouble.doubleValue(), is(equalTo(33.2)));
-
-  }
-
-  @Test
-  public void testDoubleInfinity() {
-
-    Number myDouble = new Double(33.2);
-    assertThat(myDouble.doubleValue(), is(not(equalTo(Double.POSITIVE_INFINITY))));
-
-    myDouble = new Double(Double.POSITIVE_INFINITY);
-    assertThat(myDouble.doubleValue(), is(equalTo(Double.POSITIVE_INFINITY)));
-
-    Number myInteger = new Integer(688);
-    assertThat(myInteger.doubleValue(), is(not(equalTo(Double.POSITIVE_INFINITY))));
-
-  }
-}