Fix apc_mmap.c:62:9: warning: variable 'remap' set but not used

git-svn-id: http://svn.php.net/repository/pecl/apc/trunk@328964 c90b9560-bf6c-de11-be94-00142212c4b1
Fix apc_string.c:108:5: warning: passing argument 1 of 'memcpy' discards 'const' qualifier from pointer target type

git-svn-id: http://svn.php.net/repository/pecl/apc/trunk@328965 c90b9560-bf6c-de11-be94-00142212c4b1