GUACAMOLE-407: Remove unnecessary setting of LC_ALL within build (only needed at runtime).
diff --git a/Dockerfile b/Dockerfile
index ef9e033..120ba88 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -52,9 +52,6 @@
         libwebp-dev                   \
         make"
 
-# Build time environment
-ENV LC_ALL=en_US.UTF-8
-
 # Bring build environment up to date and install build dependencies
 RUN apt-get update                         && \
     apt-get install -y $BUILD_DEPENDENCIES && \