Revert "CMake script improvements"

CMakeLists.txt

@@ -12,8 +12,6 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 add_library(spdlog INTERFACE)
 
 option(SPDLOG_BUILD_EXAMPLES "Build examples" OFF)
-option(SPDLOG_BUILD_TESTS "Build tests" OFF)
-option(SPDLOG_BUILD_BENCHMARKS "Build comparison benchmarks for various logging libraries" OFF)
 
 target_include_directories(
     spdlog
@@ -22,20 +20,9 @@ target_include_directories(
     "$<INSTALL_INTERFACE:include>"
 )
 
-set(HEADER_BASE "${CMAKE_CURRENT_SOURCE_DIR}/include")
-
-include(CTest)
 if(SPDLOG_BUILD_EXAMPLES)
-    add_subdirectory(example)
-endif()
-
-if(SPDLOG_BUILD_TESTS)
-    add_subdirectory(tests)
-endif()
-
-if(SPDLOG_BUILD_BENCHMARKS)
-    add_subdirectory(vendor)
-    add_subdirectory(bench)
+  enable_testing()
+  add_subdirectory(example)
 endif()
 
 ### Install ###