Revert "add a .clang-format file (#9154)" (#9172)

I thought git would be smart enough to understand all the whitespace changes but even with all the flags I know to make it ignore theses it still blows up if there are identical changes on both sides.

I have a solution but it require creating a new commit at the merge base for each conflicting PR and merging it into develop.

I don't think blowing up all PRs is worth for now, maybe if we can coordinate this for V3 let's say.

This reverts commit 0d11331d18.

src/motion/STK8XXXSensor.h

@@ -10,22 +10,24 @@
 
 #include <stk8baxx.h>
 
-class STK8XXXSensor : public MotionSensor {
-private:
-  STK8xxx sensor;
+class STK8XXXSensor : public MotionSensor
+{
+  private:
+    STK8xxx sensor;
 
-public:
-  explicit STK8XXXSensor(ScanI2C::FoundDevice foundDevice);
-  virtual bool init() override;
-  virtual int32_t runOnce() override;
+  public:
+    explicit STK8XXXSensor(ScanI2C::FoundDevice foundDevice);
+    virtual bool init() override;
+    virtual int32_t runOnce() override;
 };
 
 #else
 
 // Stub
-class STK8XXXSensor : public MotionSensor {
-public:
-  explicit STK8XXXSensor(ScanI2C::FoundDevice foundDevice);
+class STK8XXXSensor : public MotionSensor
+{
+  public:
+    explicit STK8XXXSensor(ScanI2C::FoundDevice foundDevice);
 };
 
 #endif