Added file associations for tex, py and cpp. Also only kept tex, py and cpp snippets

.emacs.d/snippets/latex-mode/default

@@ -1,12 +0,0 @@
-# -*- mode: snippet -*-
-# name: default
-# key: defa
-# --
-\documentclass[12pt]{article}
-
-\usepackage{titling}
-\usepackage[a4paper, left=2.5cm, right=2cm, top=2cm, bottom=2cm]{geometry}
-
-\begin{docuemnt}
-$0
-\end{document}

.emacs.d/snippets/latex-mode/table

@@ -1,10 +0,0 @@
-# -*- mode: snippet -*-
-# contributor : Mads D. Kristensen <madsdk@gmail.com>
-# key: tab
-# name : table
-# --
-\begin{tabularx}{${3:format}}
-  $0
-\end{tabularx}
-\caption{${1:caption}}
-\label{${2:"waiting for reftex-label call..."$(unless yas/modified-p (reftex-label nil 'dont-insert))}}

.emacs.d/snippets/latex-mode/titling

@@ -1,9 +0,0 @@
-# -*- mode: snippet -*-
-# name: sectioning
-# key: secc
-# --
-\usepackage{titlesec}
-
-\titleformat{\section}{\huge\bfseries}{}{0em}{}[{\titlerule[0.4pt]}]
-\titleformat{\sectionsub}{\large\bfseries}{}{0em}{}[{\titlerule[0.4pt]}]
-