mainwindow.cpp: remove unneeded header includes.
tree30876879eea98af5e7ff4f5a0612081f31fef183
-rw-r--r-- 447 .gitignore
-rw-r--r-- 251 AUTHORS
-rw-r--r-- 32473 COPYING
-rw-r--r-- 764 INSTALL
-rw-r--r-- 244 README
drwxr-xr-x - docs
drwxr-xr-x - projects
-rw-r--r-- 269 sloppygui.pro
drwxr-xr-x - tools