Remove content of the lttng folder and corresponding target dependencies

The LTTng component (also known as TMF) of Linux Tools has moved to the
Trace Compass project. A README file was added to explain that the
code moved.

Change-Id: I939275594beccc78155f37671d1765539764eabc
Signed-off-by: Marc-Andre Laperle <[email protected]>
Reviewed-on: https://git.eclipse.org/r/43270
Tested-by: Hudson CI
Reviewed-by: Alexander Kurtakov <[email protected]>
Tested-by: Alexander Kurtakov <[email protected]>

Author: MarkZ3

Diff for: lttng/.gitignore

@@ -1,58 +1,3 @@
-This directory contains the source code for the LTTng integration plugins for
-Eclipse, which includes the generic Tracing and Monitoring Framework (TMF).
-
-The plugins are categorized as follows:
-org.eclipse.linuxtools.ctf.*          Common Trace Format (CTF) reader library
-org.eclipse.linuxtools.gdbtrace.*     Support for reading and viewing GDB traces
-org.eclipse.linuxtools.lttng2.*       LTTng 2.x integration
-org.eclipse.linuxtools.tmf.*          Tracing and Monitoring Framework
-org.eclipse.linuxtools.statesystem.*  State System library
-org.eclipse.linuxtools.tracing.rcp.*  Code specific to the RCP version
-
-See the plugins.svg file for a diagram showing the dependencies between the
-different plugins.
-
-
-To set up the environment to build TMF from within Eclipse, see this wiki page:
-http://wiki.eclipse.org/Linux_Tools_Project/LTTng_Eclipse_Plug-in_Development_Environment_Setup
-
-
-
-
-To build the plugins manually using Maven, you first need to build the Linux Tools target definition
- (starting from the root of the source tree):
-$ cd releng/org.eclipse.linuxtools.target
-$ mvn clean install
-Then you can build the LTTng plugins:
-$ cd ../../lttng
-$ mvn clean install
-
-As long as you don't clear the Maven reactor cache (in ~/.m2), you should not
-need to rebuild the target definition.
-
-
-The default command will compile and run the unit tests. Running the tests can
-take some time, to skip them you can append "-Dmaven.test.skip=true" to the
-'mvn' command:
-$ mvn clean install -Dmaven.test.skip=true
-
-
-The RCP is not built by default, to build it you need to add "-PtracingRcp" to
-the 'mvn' command:
-$ mvn clean install -PtracingRcp -Dmaven.test.skip=true
-
-This will build the RCP for all supported architectures. The resulting archives
-will be placed in lttng/org.eclipse.linuxtools.tracing.rcp.product/target/products
-
-
-To build a local p2 update site (LTTng integration only)
-$ mvn clean install -PlttngPackage
-
-This will place the p2 update site under the default location
-/var/www/tools/linuxtools/lttng/update-nightly/
-
-To change the package location, use:
-$ mvn clean install -PlttngPackage "-DlttngPackageDestination=<package destination>"
-
-where <package destination> is the absolute path to destination directory on your disk.
-
+The LTTng component (also known as TMF) of Linux Tools has moved to
+the Trace Compass project. Please visit the project page for more details.
+https://projects.eclipse.org/projects/tools.tracecompass