del uninstall protobuf (#20769)

paddle/scripts/paddle_build.sh

@@ -89,7 +89,6 @@ function cmake_base() {
                 PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/Library/Frameworks/Python.framework/Versions/3.5/bin/python3
             -DPYTHON_INCLUDE_DIR:PATH=/Library/Frameworks/Python.framework/Versions/3.5/include/python3.5m/
             -DPYTHON_LIBRARY:FILEPATH=/Library/Frameworks/Python.framework/Versions/3.5/lib/libpython3.5m.dylib"
-                pip3.5 uninstall -y protobuf
                 pip3.5 install --user -r ${PADDLE_ROOT}/python/requirements.txt
             else
                 exit 1
@@ -102,7 +101,6 @@ function cmake_base() {
                 PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/Library/Frameworks/Python.framework/Versions/3.6/bin/python3
             -DPYTHON_INCLUDE_DIR:PATH=/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m/
             -DPYTHON_LIBRARY:FILEPATH=/Library/Frameworks/Python.framework/Versions/3.6/lib/libpython3.6m.dylib"
-                pip3.6 uninstall -y protobuf
                 pip3.6 install --user -r ${PADDLE_ROOT}/python/requirements.txt
             else
                 exit 1
@@ -115,7 +113,6 @@ function cmake_base() {
                 PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/Library/Frameworks/Python.framework/Versions/3.7/bin/python3
             -DPYTHON_INCLUDE_DIR:PATH=/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m/
             -DPYTHON_LIBRARY:FILEPATH=/Library/Frameworks/Python.framework/Versions/3.7/lib/libpython3.7m.dylib"
-                pip3.7 uninstall -y protobuf
                 pip3.7 install --user -r ${PADDLE_ROOT}/python/requirements.txt
             else
                 exit 1
@@ -130,7 +127,6 @@ function cmake_base() {
                 PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/python/cp27-cp27m/bin/python
             -DPYTHON_INCLUDE_DIR:PATH=/opt/python/cp27-cp27m/include/python2.7
             -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-2.7.11-ucs2/lib/libpython2.7.so"
-                pip uninstall -y protobuf
                 pip install -r ${PADDLE_ROOT}/python/requirements.txt
             elif [ "$1" == "cp27-cp27mu" ]; then
                 export LD_LIBRARY_PATH=/opt/_internal/cpython-2.7.11-ucs4/lib:${LD_LIBRARY_PATH#/opt/_internal/cpython-2.7.11-ucs2/lib:}
@@ -138,7 +134,6 @@ function cmake_base() {
                 PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/python/cp27-cp27mu/bin/python
             -DPYTHON_INCLUDE_DIR:PATH=/opt/python/cp27-cp27mu/include/python2.7
             -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-2.7.11-ucs4/lib/libpython2.7.so"
-                pip uninstall -y protobuf
                 pip install -r ${PADDLE_ROOT}/python/requirements.txt
             elif [ "$1" == "cp35-cp35m" ]; then
                 export LD_LIBRARY_PATH=/opt/_internal/cpython-3.5.1/lib/:${LD_LIBRARY_PATH}
@@ -146,7 +141,6 @@ function cmake_base() {
                 export PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/_internal/cpython-3.5.1/bin/python3
             -DPYTHON_INCLUDE_DIR:PATH=/opt/_internal/cpython-3.5.1/include/python3.5m
             -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-3.5.1/lib/libpython3.so"
-                pip3.5 uninstall -y protobuf
                 pip3.5 install -r ${PADDLE_ROOT}/python/requirements.txt
             elif [ "$1" == "cp36-cp36m" ]; then
                 export LD_LIBRARY_PATH=/opt/_internal/cpython-3.6.0/lib/:${LD_LIBRARY_PATH}
@@ -154,7 +148,6 @@ function cmake_base() {
                 export PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/_internal/cpython-3.6.0/bin/python3
             -DPYTHON_INCLUDE_DIR:PATH=/opt/_internal/cpython-3.6.0/include/python3.6m
             -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-3.6.0/lib/libpython3.so"
-                pip3.6 uninstall -y protobuf
                 pip3.6 install -r ${PADDLE_ROOT}/python/requirements.txt
             elif [ "$1" == "cp37-cp37m" ]; then
                 export LD_LIBRARY_PATH=/opt/_internal/cpython-3.7.0/lib/:${LD_LIBRARY_PATH}
@@ -162,11 +155,9 @@ function cmake_base() {
                 export PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/_internal/cpython-3.7.0/bin/python3.7
             -DPYTHON_INCLUDE_DIR:PATH=/opt/_internal/cpython-3.7.0/include/python3.7m
             -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-3.7.0/lib/libpython3.so"
-                pip3.7 uninstall -y protobuf
                 pip3.7 install -r ${PADDLE_ROOT}/python/requirements.txt
            fi
         else
-            pip uninstall -y protobuf
             pip install -r ${PADDLE_ROOT}/python/requirements.txt
         fi
     fi