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/concurrency/Lock.cpp

@@ -2,26 +2,30 @@
 #include "configuration.h"
 #include <cassert>
 
-namespace concurrency {
+namespace concurrency
+{
 
 #ifdef HAS_FREE_RTOS
-Lock::Lock() : handle(xSemaphoreCreateBinary()) {
-  assert(handle);
-  if (xSemaphoreGive(handle) == false) {
-    abort();
-  }
+Lock::Lock() : handle(xSemaphoreCreateBinary())
+{
+    assert(handle);
+    if (xSemaphoreGive(handle) == false) {
+        abort();
+    }
 }
 
-void Lock::lock() {
-  if (xSemaphoreTake(handle, portMAX_DELAY) == false) {
-    abort();
-  }
+void Lock::lock()
+{
+    if (xSemaphoreTake(handle, portMAX_DELAY) == false) {
+        abort();
+    }
 }
 
-void Lock::unlock() {
-  if (xSemaphoreGive(handle) == false) {
-    abort();
-  }
+void Lock::unlock()
+{
+    if (xSemaphoreGive(handle) == false) {
+        abort();
+    }
 }
 #else
 Lock::Lock() {}