Spelling fix, comments explaining script.

tools/install_dependencides.sh

Index: tools/install_dependencides.sh
diff --git a/tools/install_dependencides.sh b/tools/install_dependencides.sh
deleted file mode 100755
index f262117660558ed43f424f66e36c01bb5939ed62..0000000000000000000000000000000000000000
--- a/tools/install_dependencides.sh
+++ /dev/null
@@ -1,29 +0,0 @@
-#!/bin/sh
-# Copyright 2014 Google Inc.
-#
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-if command -v lsb_release > /dev/null ; then
-    case $(lsb_release -i -s) in
-        Ubuntu)
-            sudo apt-get install \
-                build-essential \
-		libfreetype6-dev \
-		libfontconfig-dev \
-		libpng12-dev \
-		libgif-dev \
-		libqt4-dev \
-		clang
-	    if [ $(lsb_release -r -s) = '14.04' ] ; then
-		sudo apt-get install \
-		    ninja-build
-	    fi
-            exit
-            ;;
-    esac
-fi
-
-echo 'unknown system'
-exit 1
-