Emulation.DiscSystem - cleanup - use expression body

BizHawk.Emulation.DiscSystem/CDFS/EndianBitConverter.cs

@@ -22,17 +22,13 @@ namespace BizHawk.Emulation.DiscSystem
 		/// Build a converter from little endian to the system endian-ness.
 		/// </summary>
 		/// <returns>The converter</returns>
-		public static EndianBitConverter CreateForLittleEndian() {
-			return new EndianBitConverter(!BitConverter.IsLittleEndian);
-		}
+		public static EndianBitConverter CreateForLittleEndian() => new EndianBitConverter(!BitConverter.IsLittleEndian);
 
 		/// <summary>
 		/// Build a converter from big endian to the system endian-ness.
 		/// </summary>
 		/// <returns>The converter</returns>
-		public static EndianBitConverter CreateForBigEndian() {
-			return new EndianBitConverter(BitConverter.IsLittleEndian);
-		}
+		public static EndianBitConverter CreateForBigEndian() => new EndianBitConverter(BitConverter.IsLittleEndian);
 
 		#endregion
 

BizHawk.Emulation.DiscSystem/Disc.cs

@@ -37,7 +37,7 @@ namespace BizHawk.Emulation.DiscSystem
 		/// <summary>
 		/// DiscStructure.Session 1 of the disc, since that's all thats needed most of the time.
 		/// </summary>
-		public DiscStructure.Session Session1 { get { return Structure.Sessions[1]; } }
+		public DiscStructure.Session Session1 => Structure.Sessions[1];
 
 		/// <summary>
 		/// The name of a disc. Loosely based on the filename. Just for informational purposes.

BizHawk.Emulation.DiscSystem/DiscFormats/Blobs/Blob_RawFile.cs

@@ -8,10 +8,7 @@ namespace BizHawk.Emulation.DiscSystem
 		{
 			public string PhysicalPath
 			{
-				get
-				{
-					return physicalPath;
-				}
+				get => physicalPath;
 				set
 				{
 					physicalPath = value;