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/BinarySemaphorePosix.cpp

@@ -3,7 +3,8 @@
 
 #ifndef HAS_FREE_RTOS
 
-namespace concurrency {
+namespace concurrency
+{
 
 BinarySemaphorePosix::BinarySemaphorePosix() {}
 
@@ -12,9 +13,10 @@ BinarySemaphorePosix::~BinarySemaphorePosix() {}
 /**
  * Returns false if we timed out
  */
-bool BinarySemaphorePosix::take(uint32_t msec) {
-  delay(msec); // FIXME
-  return false;
+bool BinarySemaphorePosix::take(uint32_t msec)
+{
+    delay(msec); // FIXME
+    return false;
 }
 
 void BinarySemaphorePosix::give() {}