remove outdated php dockerfile dependency

src/php/bin/determine_extension_dir.sh

@@ -29,11 +29,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 set -e
 default_extension_dir=$(php-config --extension-dir)
-if command -v brew > /dev/null && \
-   brew ls --versions | grep php5[56]-grpc > /dev/null; then
-  # the grpc php extension was installed by homebrew
-  :
-elif [ ! -e $default_extension_dir/grpc.so ]; then
+if [ ! -e $default_extension_dir/grpc.so ]; then
   # the grpc extension is not found in the default PHP extension dir
   # try the source modules directory
   module_dir=../ext/grpc/modules

templates/tools/dockerfile/php_deps.include

@@ -3,11 +3,5 @@
 
 # Install dependencies
 
-RUN /bin/bash -l -c "echo 'deb http://packages.dotdeb.org wheezy-php55 all' ${'\\'}
-    >> /etc/apt/sources.list.d/dotdeb.list"
-RUN /bin/bash -l -c "echo 'deb-src http://packages.dotdeb.org wheezy-php55 all' ${'\\'}
-    >> /etc/apt/sources.list.d/dotdeb.list"
-RUN wget http://www.dotdeb.org/dotdeb.gpg -O- | apt-key add -
-
 RUN apt-get update && apt-get install -y ${'\\'}
     git php5 php5-dev phpunit unzip

tools/dockerfile/interoptest/grpc_interop_php/Dockerfile

@@ -98,12 +98,6 @@ RUN /bin/bash -l -c "gem install bundler --no-ri --no-rdoc"
 
 # Install dependencies
 
-RUN /bin/bash -l -c "echo 'deb http://packages.dotdeb.org wheezy-php55 all' \
-    >> /etc/apt/sources.list.d/dotdeb.list"
-RUN /bin/bash -l -c "echo 'deb-src http://packages.dotdeb.org wheezy-php55 all' \
-    >> /etc/apt/sources.list.d/dotdeb.list"
-RUN wget http://www.dotdeb.org/dotdeb.gpg -O- | apt-key add -
-
 RUN apt-get update && apt-get install -y \
     git php5 php5-dev phpunit unzip
 

tools/dockerfile/stress_test/grpc_interop_stress_php/Dockerfile

@@ -103,12 +103,6 @@ RUN pip install --upgrade google-api-python-client
 
 # Install dependencies
 
-RUN /bin/bash -l -c "echo 'deb http://packages.dotdeb.org wheezy-php55 all' \
-    >> /etc/apt/sources.list.d/dotdeb.list"
-RUN /bin/bash -l -c "echo 'deb-src http://packages.dotdeb.org wheezy-php55 all' \
-    >> /etc/apt/sources.list.d/dotdeb.list"
-RUN wget http://www.dotdeb.org/dotdeb.gpg -O- | apt-key add -
-
 RUN apt-get update && apt-get install -y \
     git php5 php5-dev phpunit unzip
 

tools/dockerfile/test/multilang_jessie_x64/Dockerfile

@@ -100,12 +100,6 @@ RUN /bin/bash -l -c "nvm alias default 4"
 
 # Install dependencies
 
-RUN /bin/bash -l -c "echo 'deb http://packages.dotdeb.org wheezy-php55 all' \
-    >> /etc/apt/sources.list.d/dotdeb.list"
-RUN /bin/bash -l -c "echo 'deb-src http://packages.dotdeb.org wheezy-php55 all' \
-    >> /etc/apt/sources.list.d/dotdeb.list"
-RUN wget http://www.dotdeb.org/dotdeb.gpg -O- | apt-key add -
-
 RUN apt-get update && apt-get install -y \
     git php5 php5-dev phpunit unzip
 

tools/dockerfile/test/php_jessie_x64/Dockerfile

@@ -83,12 +83,6 @@ RUN pip install futures==2.2.0 enum34==1.0.4 protobuf==3.0.0a2 six==1.10.0
 
 # Install dependencies
 
-RUN /bin/bash -l -c "echo 'deb http://packages.dotdeb.org wheezy-php55 all' \
-    >> /etc/apt/sources.list.d/dotdeb.list"
-RUN /bin/bash -l -c "echo 'deb-src http://packages.dotdeb.org wheezy-php55 all' \
-    >> /etc/apt/sources.list.d/dotdeb.list"
-RUN wget http://www.dotdeb.org/dotdeb.gpg -O- | apt-key add -
-
 RUN apt-get update && apt-get install -y \
     git php5 php5-dev phpunit unzip