remove dir locals, use presets instead

`projectile-configure-project' in conjunction with CMakePresets.json
will allow to configure the project.
`projectile-compile-project' does sth similar for the compile command.

This is equivalent to something like
~cmake --preset clang-debug && cmake --build build --preset clang-debug~

.dir-locals.el

@@ -1,8 +0,0 @@
-;;; Directory Local Variables            -*- no-byte-compile: t -*-
-;;; For more information see (info "(emacs) Directory Variables")
-
-((nil . ((compile-command .
-                          (eval
-                           (format "cmake -B build -S . -DCMAKE_C_COMIPLER=%S -DCMAKE_CXX_COMIPLER=%S -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DFETCHCONTENT_FULLY_DISCONNECTED=OFF -G Ninja && cmake --build build"
-                                   (executable-find "clang")
-                                   (executable-find "clang++")))))))

CMakePresets.json

@@ -20,7 +20,6 @@
     {
       "name": "clang-release",
       "inherits": "default",
-            "generator": "Ninja",
       "cacheVariables": {
         "CMAKE_BUILD_TYPE": "Release"
       }
@@ -28,10 +27,27 @@
     {
       "name": "clang-debug",
       "inherits": "default",
-            "generator": "Ninja",
       "cacheVariables": {
         "CMAKE_BUILD_TYPE": "Debug"
       }
+    },
+    {
+      "name": "gcc-release",
+      "inherits": "default",
+      "cacheVariables": {
+        "CMAKE_C_COMPILER": "gcc",
+        "CMAKE_CXX_COMPILER": "g++",
+        "CMAKE_BUILD_TYPE": "Release"
+      }
+    },
+    {
+      "name": "gcc-debug",
+      "inherits": "default",
+      "cacheVariables": {
+        "CMAKE_C_COMPILER": "gcc",
+        "CMAKE_CXX_COMPILER": "g++",
+        "CMAKE_BUILD_TYPE": "Debug"
+      }
     }
   ],
   "buildPresets": [
@@ -41,12 +57,12 @@
       "jobs": 10
     },
     {
-            "name": "clang-release",
+      "name": "release",
       "inherits": "default",
       "configuration": "Release"
     },
     {
-            "name": "clang-debug",
+      "name": "debug",
       "inherits": "default",
       "configuration": "Debug"
     }