Reduce std::numeric_limits dependency

Please, stop pretending...
You need these templates for generic code.
In other words, in another templates.
Stop increasing compilation time for no reason.

rpcs3/Emu/CPU/CPUDisAsm.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <string>
+#include <limits>
 #include "Utilities/StrFmt.h"
 
 enum CPUDisAsmMode

rpcs3/Emu/Cell/lv2/sys_net.cpp

@@ -25,7 +25,6 @@
 
 #include "Emu/NP/np_handler.h"
 
-#include <limits>
 #include <chrono>
 #include <shared_mutex>
 

rpcs3/Emu/RSX/Common/BufferUtils.cpp

@@ -685,7 +685,7 @@ namespace
 	template <typename T>
 	constexpr T index_limit()
 	{
-		return std::numeric_limits<T>::max();
+		return -1;
 	}
 
 	template <typename T>

rpcs3/Input/ds4_pad_handler.h

@@ -132,10 +132,10 @@ private:
 		const s32 rem = calibData.sensNumer % calibData.sensDenom;
 		const s32 output = (quot * biased) + ((rem * biased) / calibData.sensDenom);
 
-		if (output > std::numeric_limits<s16>::max())
-			return std::numeric_limits<s16>::max();
-		else if (output < std::numeric_limits<s16>::min())
-			return std::numeric_limits<s16>::min();
+		if (output > INT16_MAX)
+			return INT16_MAX;
+		else if (output < INT16_MIN)
+			return INT16_MIN;
 		else return static_cast<s16>(output);
 	}
 

rpcs3/rpcs3qt/qt_utils.cpp

@@ -22,10 +22,10 @@ namespace gui
 			// Get minimum virtual screen x & y for clamping the
 			// window x & y later while taking the width and height
 			// into account, so they don't go offscreen
-			s32 min_screen_x = std::numeric_limits<s32>::max();
-			s32 max_screen_x = std::numeric_limits<s32>::min();
-			s32 min_screen_y = std::numeric_limits<s32>::max();
-			s32 max_screen_y = std::numeric_limits<s32>::min();
+			s32 min_screen_x = INT32_MAX;
+			s32 max_screen_x = INT32_MIN;
+			s32 min_screen_y = INT32_MAX;
+			s32 max_screen_y = INT32_MIN;
 			for (auto screen : QApplication::screens())
 			{
 				auto screen_geometry = screen->availableGeometry();

rpcs3/util/atomic.hpp

@@ -1463,7 +1463,7 @@ public:
 	}
 
 	// Conditionally decrement
-	bool try_dec(simple_type greater_than = std::numeric_limits<simple_type>::min())
+	bool try_dec(simple_type greater_than)
 	{
 		type _new, old = atomic_storage<type>::load(m_data);
 
@@ -1486,7 +1486,7 @@ public:
 	}
 
 	// Conditionally increment
-	bool try_inc(simple_type less_than = std::numeric_limits<simple_type>::max())
+	bool try_inc(simple_type less_than)
 	{
 		type _new, old = atomic_storage<type>::load(m_data);