[build] Make Protobuf optional in CMake build (#7061)

wpimath/src/main/native/cpp/geometry/Ellipse2d.cpp

@@ -6,8 +6,6 @@
 
 #include <sleipnir/optimization/OptimizationProblem.hpp>
 
-#include "geometry2d.pb.h"
-
 using namespace frc;
 
 units::meter_t Ellipse2d::Distance(const Translation2d& point) const {

wpimath/src/main/native/cpp/geometry/Pose3d.cpp

@@ -9,8 +9,6 @@
 #include <Eigen/Core>
 #include <wpi/json.h>
 
-#include "geometry3d.pb.h"
-
 using namespace frc;
 
 namespace {

wpimath/src/main/native/cpp/geometry/Rectangle2d.cpp

@@ -1,7 +0,0 @@
-// Copyright (c) FIRST and other WPILib contributors.
-// Open Source Software; you can modify and/or share it under the terms of
-// the WPILib BSD license file in the root directory of this project.
-
-#include "frc/geometry/Rectangle2d.h"
-
-#include "geometry2d.pb.h"

wpimath/src/main/native/cpp/geometry/Rotation2d.cpp

@@ -8,7 +8,6 @@
 
 #include <wpi/json.h>
 
-#include "geometry2d.pb.h"
 #include "units/math.h"
 
 using namespace frc;

wpimath/src/main/native/cpp/geometry/Rotation3d.cpp

@@ -13,7 +13,6 @@
 #include <wpi/json.h>
 
 #include "frc/fmt/Eigen.h"
-#include "geometry3d.pb.h"
 #include "units/math.h"
 #include "wpimath/MathShared.h"
 

wpimath/src/main/native/cpp/geometry/Transform2d.cpp

@@ -5,7 +5,6 @@
 #include "frc/geometry/Transform2d.h"
 
 #include "frc/geometry/Pose2d.h"
-#include "geometry2d.pb.h"
 
 using namespace frc;
 

wpimath/src/main/native/cpp/geometry/Translation2d.cpp

@@ -6,7 +6,6 @@
 
 #include <wpi/json.h>
 
-#include "geometry2d.pb.h"
 #include "units/math.h"
 
 using namespace frc;

wpimath/src/main/native/cpp/geometry/Translation3d.cpp

@@ -6,7 +6,6 @@
 
 #include <wpi/json.h>
 
-#include "geometry3d.pb.h"
 #include "units/length.h"
 #include "units/math.h"