Simplify SonarCloud configuration

Author: tobihagemann

sonar-project.properties

@@ -6,12 +6,6 @@ sonar.projectKey=cryptomator_cryptolib-swift
 sonar.sources=Sources
 sonar.tests=Tests
 
-# Exclude external dependencies
-sonar.exclusions=DerivedData/**,**/.build/**
-
-# Swift-specific settings
-sonar.swift.file.suffixes=.swift
-
 # Disable C/C++/Objective-C analysis (scrypt C files)
 sonar.c.file.suffixes=-
 sonar.cpp.file.suffixes=-