remove hardcoded ldap libdir in Dockerfile

Author: BeckerFelix

Dockerfile

@@ -6,7 +6,7 @@ ENV BOOKSTACK=BookStack \
 
 RUN apt-get update && apt-get install -y git zlib1g-dev libfreetype6-dev libjpeg62-turbo-dev libmcrypt-dev libpng-dev wget libldap2-dev libtidy-dev \
    && docker-php-ext-install pdo pdo_mysql mbstring zip tidy \
-   && docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ \
+   && docker-php-ext-configure ldap \
    && docker-php-ext-install ldap \
    && docker-php-ext-configure gd --with-freetype-dir=usr/include/ --with-jpeg-dir=/usr/include/ \
    && docker-php-ext-install gd \