Remove dead install variable

CMakeLists.txt

@@ -337,7 +337,6 @@ if(Python3_FOUND)
     )
 endif()
 
-set(main_lib_dest "lib/my_library-${MY_LIBRARY_VERSION}")
 install(TARGETS akerror
   EXPORT akerrorTargets
   ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
@@ -361,17 +360,8 @@ configure_package_config_file(
     INSTALL_DESTINATION ${akerror_install_cmakedir}
 )
 
-# The SOVERSION is the project major version, so packages with the same major
-# are ABI-compatible and a different major must be rejected.
-write_basic_package_version_file(
-    "${CMAKE_CURRENT_BINARY_DIR}/akerrorConfigVersion.cmake"
-    VERSION ${PROJECT_VERSION}
-    COMPATIBILITY SameMajorVersion
-)
-
 install(FILES
     "${CMAKE_CURRENT_BINARY_DIR}/akerrorConfig.cmake"
-    "${CMAKE_CURRENT_BINARY_DIR}/akerrorConfigVersion.cmake"
     DESTINATION ${akerror_install_cmakedir}
 )