Remove redundant TIFF metadata remarks

Author: JimBobSquarePants

src/ImageSharp/Formats/Tiff/TiffFrameMetadata.cs

@@ -51,10 +51,6 @@ private TiffFrameMetadata(TiffFrameMetadata other)
     /// <summary>
     /// Gets or sets number of bits per component.
     /// </summary>
-    /// <remarks>
-    /// New metadata uses eight bits for each RGB component.
-    /// On decode, an absent <see cref="ExifTag.BitsPerSample"/> tag means one bit for each sample.
-    /// </remarks>
     public TiffBitsPerSample BitsPerSample { get; set; } = TiffConstants.DefaultBitsPerSample;
 
     /// <summary>

src/ImageSharp/Formats/Tiff/TiffMetadata.cs

@@ -54,10 +54,6 @@ private TiffMetadata(TiffMetadata other)
     /// <summary>
     /// Gets or sets number of bits per component. Derived from the root frame.
     /// </summary>
-    /// <remarks>
-    /// New metadata uses eight bits for each RGB component.
-    /// On decode, an absent <see cref="SixLabors.ImageSharp.Metadata.Profiles.Exif.ExifTag.BitsPerSample"/> tag means one bit for each sample.
-    /// </remarks>
     public TiffBitsPerSample BitsPerSample { get; set; } = TiffConstants.DefaultBitsPerSample;
 
     /// <summary>