rem obsolete (#170)

Author: bitfaster

BitFaster.Caching.UnitTests/Lru/ClassicLruTests.cs

@@ -112,17 +112,6 @@ public void WhenItemDoesNotExistTryGetReturnsNullAndFalse()
             value.Should().BeNull();
         }
 
-        [Fact]
-        public void WhenItemIsAddedThenRetrievedHitRatioIsHalf()
-        {
-            lru.GetOrAdd(1, valueFactory.Create);
-            bool result = lru.TryGet(1, out var value);
-
-#pragma warning disable CS0618 // Type or member is obsolete
-            lru.HitRatio.Should().Be(0.5);
-#pragma warning restore CS0618 // Type or member is obsolete
-        }
-
         [Fact]
         public void MetricsAreEnabled()
         {

BitFaster.Caching/Lru/ClassicLru.cs

@@ -56,12 +56,6 @@ public ClassicLru(int concurrencyLevel, int capacity, IEqualityComparer<K> compa
         ///<inheritdoc/>
         public int Capacity => this.capacity;
 
-        /// <summary>
-        /// Gets the ratio of hits to misses, where a value of 1 indicates 100% hits.
-        /// </summary>
-        [ObsoleteAttribute("This property is obsolete. Use Metrics instead.", false)]
-        public double HitRatio => this.Metrics.HitRatio;
-
         ///<inheritdoc/>
         public ICacheMetrics Metrics => this.metrics;