[hal,wpilib] Remove a ton of things related to the FPGA (#7846)

Co-authored-by: Gold856 <117957790+Gold856@users.noreply.github.com>

wpilibcExamples/src/main/cpp/snippets/AnalogInput/cpp/Robot.cpp

@@ -12,16 +12,6 @@
 class Robot : public wpi::TimedRobot {
  public:
   Robot() {
-    // Sets the AnalogInput to 4-bit oversampling.  16 samples will be added
-    // together.
-    // Thus, the reported values will increase by about a factor of 16, and the
-    // update rate will decrease by a similar amount.
-    m_analog.SetOversampleBits(4);
-
-    // Sets the AnalogInput to 4-bit averaging.  16 samples will be averaged
-    // together. The update rate will decrease by a factor of 16.
-    m_analog.SetAverageBits(4);
-
     // Gets the raw instantaneous measured value from the analog input, without
     // applying any calibration and ignoring oversampling and averaging
     // settings.
@@ -30,14 +20,6 @@ class Robot : public wpi::TimedRobot {
     // Gets the instantaneous measured voltage from the analog input.
     // Oversampling and averaging settings are ignored
     m_analog.GetVoltage();
-
-    // Gets the averaged value from the analog input.  The value is not
-    // rescaled, but oversampling and averaging are both applied.
-    m_analog.GetAverageValue();
-
-    // Gets the averaged voltage from the analog input.  Rescaling,
-    // oversampling, and averaging are all applied.
-    m_analog.GetAverageVoltage();
   }
 
   void TeleopPeriodic() override {}

wpilibcExamples/src/main/cpp/snippets/AnalogPotentiometer/cpp/Robot.cpp

@@ -12,10 +12,7 @@
  */
 class Robot : public wpi::TimedRobot {
  public:
-  Robot() {
-    // Set averaging bits to 2
-    m_input.SetAverageBits(2);
-  }
+  Robot() {}
 
   void TeleopPeriodic() override {
     // Get the value of the potentiometer