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/network-stubs.cpp

@@ -2,18 +2,30 @@
 
 #if (HAS_WIFI == 0)
 
-bool initWifi() { return false; }
+bool initWifi()
+{
+    return false;
+}
 
 void deinitWifi() {}
 
-bool isWifiAvailable() { return false; }
+bool isWifiAvailable()
+{
+    return false;
+}
 
 #endif
 
 #if (HAS_ETHERNET == 0)
 
-bool initEthernet() { return false; }
+bool initEthernet()
+{
+    return false;
+}
 
-bool isEthernetAvailable() { return false; }
+bool isEthernetAvailable()
+{
+    return false;
+}
 
 #endif