[build] Run Valgrind instead of Memory Sanitizer

Memory Sanitizer requires all the dependencies, including
libstdc++ to be compiled with Memory Sanitizer, otherwise
we will get tons of false positives.

scripts/ci/Dockerfile

@@ -9,7 +9,7 @@ WORKDIR /src
 COPY etc/apt/sources.list /etc/apt
 
 RUN set -eu \
-    && apt-get update\
+    && apt-get update \
     && apt-get dist-upgrade -y
 
 # CI requirements
@@ -38,6 +38,7 @@ RUN set -eu && apt-get install -y \
     pkg-config \
     python3-pip \
     software-properties-common \
+    valgrind \
     xvfb
 
 RUN pip3 install cmake-format==0.5.5

scripts/valgrind.sup

@@ -1,5 +1,5 @@
 {
-   Graphics driver bugs
+   Valgrind x Mesa
    Memcheck:Cond
    ...
    obj:*/swrast_dri.*
@@ -8,7 +8,7 @@
    ...
 }
 {
-   Graphics driver bugs
+   Valgrind x Mesa
    Memcheck:Value8
    ...
    obj:*/swrast_dri.*
@@ -16,63 +16,3 @@
    obj:*/swrast_dri.*
    ...
 }
-{
-   Ubuntu 16.04 - Mysterious leak when running utests
-   Memcheck:Leak
-   fun:calloc
-   obj:*
-   obj:*
-   obj:*
-   obj:*
-   obj:*
-   obj:*
-   obj:*
-   obj:*
-   obj:*
-   obj:*
-   obj:*
-}
-{
-   Qt5
-   Memcheck:Cond
-   ...
-   obj:*/libQt5Core.*
-   ...
-}
-{
-   Qt5
-   Memcheck:Value8
-   ...
-   obj:*/libQt5Core.*
-   ...
-}
-{
-   Qt5
-   Memcheck:Cond
-   ...
-   obj:*/libQt5Gui.*
-   ...
-}
-{
-   Qt5
-   Memcheck:Value8
-   ...
-   obj:*/libQt5Gui.*
-   ...
-}
-{
-   mapbox::pixelmatch
-   Memcheck:Cond
-   ...
-   fun:_ZN6mapbox10pixelmatchEPKhS1_mmPhdb
-   ...
-}
-{
-   util::write_file
-   Memcheck:Param
-   write(buf)
-   ...
-   obj:*/libc-*
-   fun:_ZN4mbgl4util10write_fileERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES8_
-   ...
-}