Revert forced warp shuffle to fix some games (#385)

Metroid Prime Remastered, Prince of Persia The Lost Crown, and maybe
some others.

A few testers and I couldn't find any game that this broke, but it fixed these two above and they said they got fewer artifacts from a few others.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/385
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Co-authored-by: Calchan <denis.dupeyron@gmail.com>
Co-committed-by: Calchan <denis.dupeyron@gmail.com>

src/shader_recompiler/frontend/maxwell/translate/impl/warp_shuffle.cpp

@@ -7,7 +7,6 @@
 #include "common/bit_field.h"
 #include "common/common_types.h"
 #include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
-#include <fstream>
 
 namespace Shader::Maxwell {
 namespace {
@@ -37,17 +36,6 @@ enum class ShuffleMode : u64 {
     }
 }
 
-bool IsKONA() {
-    std::ifstream machineFile("/sys/devices/soc0/machine");
-    if (machineFile.is_open()) {
-        std::string line;
-        std::getline(machineFile, line);
-        if (line == "KONA")
-            return true;
-    }
-    return false;
-}
-
 void Shuffle(TranslatorVisitor& v, u64 insn, const IR::U32& index, const IR::U32& mask) {
     union {
         u64 insn;
@@ -59,10 +47,7 @@ void Shuffle(TranslatorVisitor& v, u64 insn, const IR::U32& index, const IR::U32
 
     const IR::U32 result{ShuffleOperation(v.ir, v.X(shfl.src_reg), index, mask, shfl.mode)};
     v.ir.SetPred(shfl.pred, v.ir.GetInBoundsFromOp(result));
-    if (IsKONA())
-        v.X(shfl.dest_reg, v.ir.Imm32(0xffffffff)); // This fixes the freeze for Retroid / Snapdragon SD865
-    else
-        v.X(shfl.dest_reg, result);
+    v.X(shfl.dest_reg, result);
 }
 } // Anonymous namespace