Remove self equals test flagged by error prone

The existing code can't be compiled by Bazel with integrated error
prone:

  error: [SelfEquals] An object is tested for equality to itself
  see http://errorprone.info/bugpattern/SelfEquals.

Change-Id: I9509707aad51bccbbc6ecd3391632970efdffd57

src/test/java/com/googlesource/gerrit/plugins/its/base/workflow/PropertyTest.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/its/base/workflow/PropertyTest.java b/src/test/java/com/googlesource/gerrit/plugins/its/base/workflow/PropertyTest.java
index 2d34838..dcffab4 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/its/base/workflow/PropertyTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/its/base/workflow/PropertyTest.java
@@ -42,11 +42,6 @@
     assertEquals("Value does not match", "testValue", property.getValue());
   }
 
-  public void testEqualsSelf() {
-    Property property = createProperty("testKey", "testValue");
-    assertTrue("Property not equal to itself", property.equals(property));
-  }
-
   public void testEqualsSimilar() {
     Property propertyA = createProperty("testKey", "testValue");
     Property propertyB = createProperty("testKey", "testValue");
@@ -126,4 +121,4 @@
       factory(Property.Factory.class);
     }
   }
-}
\ No newline at end of file
+}