Removing tests that don't make any sense (#3013)

* test(partition): remove nonsense test

Test wasn't testing anything, it was passing the partition function
itself to the expect(), which doesn't really do anything of value.

* test(repeat): remove nonsense tests

These tests were really testing the rethrowing capability of Observable, as triggered when the scheduler was flushed. The call directly above the flush to `repeat` does nothing but create a new observable that is never subscribed to

spec/operators/partition-spec.ts

@@ -255,11 +255,6 @@ describe('Observable.prototype.partition', () => {
     expectSubscriptions(e1.subscriptions).toBe([e1subs, e1subs]);
   });
 
-  it('should throw without predicate', () => {
-    const e1 = hot('--a-b---a------d----');
-    expect(e1.partition).to.throw();
-  });
-
   it('should accept thisArg', () => {
     const thisArg = {};
 

spec/operators/repeat-spec.ts

@@ -216,54 +216,6 @@ describe('Observable.prototype.repeat', () => {
     expectSubscriptions(e1.subscriptions).toBe(e1subs);
   });
 
-  it('should terminate repeat and throw if source subscription to _next throws', () => {
-    const e1 = Observable.of<number>(1, 2, rxTestScheduler);
-    e1.subscribe(() => { throw new Error('error'); });
-
-    expect(() => {
-      e1.repeat(3);
-      rxTestScheduler.flush();
-    }).to.throw();
-  });
-
-  it('should terminate repeat and throw if source subscription to _complete throws', () => {
-    const e1 = Observable.of<number>(1, 2, rxTestScheduler);
-    e1.subscribe(() => {
-      //noop
-    }, () => {
-      //noop
-    }, () => { throw new Error('error'); });
-
-    expect(() => {
-      e1.repeat(3);
-      rxTestScheduler.flush();
-    }).to.throw();
-  });
-
-  it('should terminate repeat and throw if source subscription to _next throws when repeating infinitely', () => {
-    const e1 = Observable.of<number>(1, 2, rxTestScheduler);
-    e1.subscribe(() => { throw new Error('error'); });
-
-    expect(() => {
-      e1.repeat();
-      rxTestScheduler.flush();
-    }).to.throw();
-  });
-
-  it('should terminate repeat and throw if source subscription to _complete throws when repeating infinitely', () => {
-    const e1 = Observable.of<number>(1, 2, rxTestScheduler);
-    e1.subscribe(() => {
-      //noop
-    }, () => {
-      //noop
-    }, () => { throw new Error('error'); });
-
-    expect(() => {
-      e1.repeat();
-      rxTestScheduler.flush();
-    }).to.throw();
-  });
-
   it('should raise error after first emit succeed', () => {
     let repeated = false;