Remove unneeded target_include_directories with cmake

This could remove recurring of the same statement for include directories.
Instead of this removals, apps/* and tests  should have include path that
had been provided by INTERFACE_INCLUDE_DIRECTORIES of target libs and
internal static libs.

apps/openssl/CMakeLists.txt

@@ -77,6 +77,7 @@ if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
 endif()
 
 add_executable(openssl ${OPENSSL_SRC})
+target_include_directories(openssl PUBLIC ../../include)
 target_include_directories(openssl PRIVATE . ../../include/compat)
 target_link_libraries(openssl ${OPENSSL_LIBS})