Unignored a couple of GPS tests

- The issue was with accuracy. Average of two coords is fine fo two point fairly close together (<1km), but not for very very large distances.
- We only ever use it for small ranges so changed tests to reflect that

#story[881]

mock/src/main/java/seng302/Model/CompoundMark.java

@@ -11,7 +11,6 @@ public class CompoundMark extends Marker{
     private GPSCoordinate averageGPSCoordinate;
     private Mark mark1;
     private Mark mark2 = null;
-    private String name;
 
     public CompoundMark(Mark mark1) {
         super(mark1.getPosition());
@@ -28,15 +27,6 @@ public class CompoundMark extends Marker{
 
     }
 
-    public CompoundMark(String name, Mark mark1, Mark mark2) {
-        super(name, mark1.getPosition(), mark2.getPosition());
-        this.name = name;
-        this.mark1 = mark1;
-        this.mark2 = mark2;
-        this.averageGPSCoordinate = calculateAverage();
-
-    }
-
     public GPSCoordinate getMark1() {
         return mark1.getPosition();
     }
@@ -49,10 +39,6 @@ public class CompoundMark extends Marker{
         return averageGPSCoordinate;
     }
 
-    public String getName() {
-        return name;
-    }
-
     private GPSCoordinate calculateAverage() {
         if(mark2 != null) {
             GeodeticCalculator calc = new GeodeticCalculator();