(NFC) Remove unused functions

Author: jfuentes

visa/G4_Kernel.cpp

@@ -629,19 +629,6 @@ bool G4_Kernel::updateKernelToLargerGRF() {
   return true;
 }
 
-//
-// Updates kernel's related structures to smaller GRF
-//
-bool G4_Kernel::updateKernelToSmallerGRF() {
-  if (numRegTotal == grfMode.getMinGRF())
-    return false;
-
-  // Scale number of GRFs, Acc, SWSB tokens.
-  setKernelParameters(grfMode.moveToSmallerGRF());
-  fg.builder->rebuildPhyRegPool(getNumRegTotal());
-  return true;
-}
-
 //
 // Updates kernel's related structures based on register pressure
 //

visa/G4_Kernel.hpp

@@ -215,17 +215,6 @@ class GRFMode {
     return configs[currentMode].numGRF;
   }
 
-  // Move GRF mode to the smaller GRF available and return the number
-  unsigned moveToSmallerGRF() {
-    for (auto i = currentMode - 1; i >= 0; --i) {
-      if (configs[i].VRTEnable) {
-        currentMode = i;
-        break;
-      }
-    }
-    return configs[currentMode].numGRF;
-  }
-
 private:
   // Parameters associated to a GRF mode
   struct Config {
@@ -691,7 +680,6 @@ class G4_Kernel {
   const char *getName() const { return name; }
 
   bool updateKernelToLargerGRF();
-  bool updateKernelToSmallerGRF();
   void updateKernelByRegPressure(unsigned regPressure);
   bool updateKernelFromNumGRFAttr();