remove nyma button name overrides, they don't help with virtualpads, and ar e a hassle to maintain, we can just consistently be inconsistent for these cores

src/BizHawk.Emulation.Cores/Consoles/NEC/PCE/HyperNyma.cs

@@ -50,16 +50,6 @@ namespace BizHawk.Emulation.Cores.Consoles.NEC.PCE
 			"pce_fast.slstart", "pce_fast.slend",
 		};
 
-		protected override IDictionary<string, string> ButtonNameOverrides { get; } = new Dictionary<string, string>
-		{
-			["UP ↑"] = "Up",
-			["DOWN ↓"] = "Down",
-			["LEFT ←"] = "Left",
-			["RIGHT →"] = "Right",
-			["SELECT"] = "Select",
-			["RUN"] = "Run"
-		};
-
 		// pce always has two layers, sgx always has 4, and mednafen knows this
 		public bool IsSgx => SettingsInfo.LayerNames.Count == 4;
 

src/BizHawk.Emulation.Cores/Consoles/NEC/PCE/TurboNyma.cs

@@ -59,16 +59,6 @@ namespace BizHawk.Emulation.Cores.Consoles.NEC.PCE
 			"pce.slstart", "pce.slend",
 		};
 
-		protected override IDictionary<string, string> ButtonNameOverrides { get; } = new Dictionary<string, string>
-		{
-			["UP ↑"] = "Up",
-			["DOWN ↓"] = "Down",
-			["LEFT ←"] = "Left",
-			["RIGHT →"] = "Right",
-			["SELECT"] = "Select",
-			["RUN"] = "Run"
-		};
-
 		protected override HashSet<string> ComputeHiddenPorts()
 		{
 			if (SettingsQuery("pce.input.multitap") == "1")

src/BizHawk.Emulation.Cores/Consoles/NEC/PCFX/Tst.cs

@@ -50,16 +50,6 @@ namespace BizHawk.Emulation.Cores.Consoles.NEC.PCFX
 			"pcfx.slstart", "pcfx.slend",
 		};
 
-		protected override IDictionary<string, string> ButtonNameOverrides { get; } = new Dictionary<string, string>
-		{
-			["UP ↑"] = "Up",
-			["DOWN ↓"] = "Down",
-			["LEFT ←"] = "Left",
-			["RIGHT →"] = "Right",
-			["SELECT"] = "Select",
-			["RUN"] = "Run"
-		};
-
 		protected override HashSet<string> ComputeHiddenPorts()
 		{
 			// NB: Since we're hiding these settings up above, this will always trim us down to 2 ports