Partially restore a reverted commit.

- Since changing ystart/height no longer needs to call `TIA::frameReset()`, the method is no longer valid
- Remove the method, and all documentation that says it is necessary to call it

src/emucore/tia/TIA.cxx

@@ -178,7 +178,7 @@ void TIA::reset()
   if (myFrameManager)
   {
     myFrameManager->reset();
-    frameReset();  // Recalculate the size of the display
+    enableColorLoss(mySettings.getBool(mySettings.getBool("dev.settings") ? "dev.colorloss" : "plr.colorloss"));
   }
 
   myFrontBufferScanlines = myFrameBufferScanlines = 0;
@@ -189,18 +189,14 @@ void TIA::reset()
   enableFixedColors(mySettings.getBool(mySettings.getBool("dev.settings") ? "dev.debugcolors" : "plr.debugcolors"));
   setFixedColorPalette(mySettings.getString("tia.dbgcolors"));
 
-#ifdef DEBUGGER_SUPPORT
-  createAccessBase();
-#endif // DEBUGGER_SUPPORT
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-void TIA::frameReset()
-{
+  // Blank the various framebuffers; they may contain graphical garbage
   memset(myBackBuffer, 0, 160 * TIAConstants::frameBufferHeight);
   memset(myFrontBuffer, 0, 160 * TIAConstants::frameBufferHeight);
   memset(myFramebuffer, 0, 160 * TIAConstants::frameBufferHeight);
-  enableColorLoss(mySettings.getBool(mySettings.getBool("dev.settings") ? "dev.colorloss" : "plr.colorloss"));
+
+#ifdef DEBUGGER_SUPPORT
+  createAccessBase();
+#endif // DEBUGGER_SUPPORT
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

src/emucore/tia/TIA.hxx

@@ -136,11 +136,6 @@ class TIA : public Device
     */
     void reset() override;
 
-    /**
-      Reset frame to current YStart/Height properties.
-    */
-    void frameReset();
-
     /**
       Install TIA in the specified system.  Invoked by the system
       when the TIA is attached to it.
@@ -253,8 +248,6 @@ class TIA : public Device
 
     /**
       Changes the current Height/YStart properties.
-      Note that calls to these method(s) must be eventually followed by
-      ::frameReset() for the changes to take effect.
     */
     void setHeight(uInt32 height) { myFrameManager->setFixedHeight(height); }
     void setYStart(uInt32 ystart) { myFrameManager->setYstart(ystart); }