Remove INSTALL file.

INSTALL

-#
-#  Copyright
-#
-
-Installation instructions for library dynamicGraph
-----------------------------------------------
-
-It is recommended to create a specific directory to install this package.
-mkdir build
-cd build
-cmake [Options] ..
-make 
-make install
-
-Options:
-
--DCMAKE_INSTALL_PREFIX=...
-  specifies the directory where to install the package.
-
--DCMAKE_BUILD_TYPE=[none|debug|release|relwithdebinfo|MinSizeRel]
-  specifies to type of compilation (release, debug, ...)