Backed out changeset d752b1eb89fe (bug 1476475)

js/src/old-configure.in

@@ -799,8 +799,6 @@ case "$target" in
             # warning insists on complaining about the latter case, which
             # is annoying, and rather noisy.
             CXXFLAGS="$CXXFLAGS -Wno-used-but-marked-unused"
-            # We don't worry about backward-compat with C++98.
-            CXXFLAGS="$CXXFLAGS -Wno-c++98-compat -Wno-c++98-compat-pedantic"
         fi
         # make 'foo == bar;' error out
         CFLAGS="$CFLAGS -we4553"

old-configure.in

@@ -1030,8 +1030,6 @@ case "$target" in
             # warning insists on complaining about the latter case, which
             # is annoying, and rather noisy.
             CXXFLAGS="$CXXFLAGS -Wno-used-but-marked-unused"
-            # We don't worry about backward-compat with C++98.
-            CXXFLAGS="$CXXFLAGS -Wno-c++98-compat -Wno-c++98-compat-pedantic"
         fi
         # make 'foo == bar;' error out
         CFLAGS="$CFLAGS -we4553"