Revert CPU clipping in the presence of CPU quota to 3.0, 2.x behavior.

Basically reverting #26806

Author: VSadov

src/classlibnative/bcltype/system.cpp

@@ -352,6 +352,13 @@ INT32 QCALLTYPE SystemNative::GetProcessorCount()
         processorCount = systemInfo.dwNumberOfProcessors;
     }
 
+#ifdef FEATURE_PAL	
+    uint32_t cpuLimit;	
+
+    if (PAL_GetCpuLimit(&cpuLimit) && cpuLimit < (uint32_t)processorCount)	
+        processorCount = cpuLimit;	
+#endif
+
     END_QCALL;
 
     return processorCount;

src/pal/src/thread/process.cpp

@@ -2558,6 +2558,12 @@ PAL_GetCPUBusyTime(
         {
             return 0;
         }
+
+        UINT cpuLimit;	
+        if (PAL_GetCpuLimit(&cpuLimit) && cpuLimit < dwNumberOfProcessors)	
+        {	
+            dwNumberOfProcessors = cpuLimit;	
+        }
     }
 
     if (getrusage(RUSAGE_SELF, &resUsage) == -1)

src/utilcode/util.cpp

@@ -1289,6 +1289,10 @@ int GetCurrentProcessCpuCount()
 
 #else // !FEATURE_PAL
     count = PAL_GetLogicalCpuCountFromOS();
+
+    uint32_t cpuLimit;	
+    if (PAL_GetCpuLimit(&cpuLimit) && cpuLimit < count)	
+        count = cpuLimit;	
 #endif // !FEATURE_PAL
 
     cCPUs = count;