Enable SA1410 and fix noncompliance

"Remove delegate parenthesis when possible"

Common.ruleset

@@ -466,9 +466,6 @@
 		<!-- Conditional expressions should declare precedence -->
 		<Rule Id="SA1408" Action="Hidden" />
 
-		<!-- Remove delegate parenthesis when possible -->
-		<Rule Id="SA1410" Action="Hidden" />
-
 		<!-- Use trailing comma in multi-line initializers -->
 		<Rule Id="SA1413" Action="Hidden" />
 	</Rules>

src/BizHawk.Emulation.Cores/CPUs/Intel8048/Interrupts.cs

@@ -35,7 +35,7 @@ namespace BizHawk.Emulation.Cores.Components.I8048
 		public bool TimIntEn;
 		public bool INT_MSTR;
 
-		public Action IRQCallback = delegate () { };
+		public Action IRQCallback = () => {};
 
 		private void ResetInterrupts()
 		{

src/BizHawk.Emulation.Cores/CPUs/MC6800/Interrupts.cs

@@ -49,8 +49,8 @@ namespace BizHawk.Emulation.Cores.Components.MC6800
 		public bool NMIPending;
 		public bool IRQPending;
 
-		public Action IRQCallback = delegate () { };
-		public Action NMICallback = delegate () { };
+		public Action IRQCallback = () => {};
+		public Action NMICallback = () => {};
 
 		private void ResetInterrupts()
 		{

src/BizHawk.Emulation.Cores/CPUs/MC6809/Interrupts.cs

@@ -78,9 +78,9 @@ namespace BizHawk.Emulation.Cores.Components.MC6809
 		public bool IRQPending;
 		public bool IN_SYNC;
 
-		public Action IRQCallback = delegate () { };
-		public Action FIRQCallback = delegate () { };
-		public Action NMICallback = delegate () { };
+		public Action IRQCallback = () => {};
+		public Action FIRQCallback = () => {};
+		public Action NMICallback = () => {};
 
 		private void ResetInterrupts()
 		{

src/BizHawk.Emulation.Cores/CPUs/Z80A/Interrupts.cs

@@ -34,12 +34,12 @@ namespace BizHawk.Emulation.Cores.Components.Z80A
 			set { if (value < 0 || value > 2) throw new ArgumentOutOfRangeException(); interruptMode = value; }
 		}
 
-		public Action IRQCallback = delegate () { };
-		public Action NMICallback = delegate () { };
+		public Action IRQCallback = () => {};
+		public Action NMICallback = () => {};
 
 		// this will be a few cycles off for now
 		// it should suffice for now until Alyosha returns from hiatus
-		public Action IRQACKCallback = delegate () { };
+		public Action IRQACKCallback = () => {};
 
 		private void NMI_()
 		{