Remove old MME/eNB instructions

There is no HSS/MME in this repository, which is the majority of this
file. Remove it, since it is outdated.
Signed-off-by: Robert Schmidt <robert.schmidt@openairinterface.org>

cmake_targets/tools/example_oaisim_enb_ue_mme_virtual.txt

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-
-# file example_oaisim_enb_ue_mme_virtual.txt
-# brief
-# author Lionel Gauthier
-
-TODO: a document file, PDF for example, with nice pictures, etc
-This example shows how to generate and launch enb, 1 ue (NAS still not virtualized in UE) in virtualised mode, mme_gw, hss executables on the same host:
-
-################
-Configuration
-################
-freediameter 1.2.0 (not 1.1.5, 1.1.6,...) has to be installed and patched (done by check_install_oai_software() calling install_freediameter_from_source() in script build_helper)
-
-Config File:
-/etc/hosts must contain the fqdn of the MME and HSS (same since both run on the same host):
-(assuming the realm is openair4G.eur)
-127.0.0.1       localhost
-127.0.1.1       yang.openair4G.eur yang
-...
-
-################
-BUILDING, RUNNING
-################
-
-Building HSS:
-yang@yang:~/openair4G/trunk/cmake_targets$ tools/build_hss -c --connect-to-mme yang.openair4G.eur -t -T --realm openair4G.eur
-
-Configuring the HSS:
-In oai_db (easier for newbies to access HSS database through http://127.0.0.1/phpmyadmin)
-    In table mmeidentity, enter the record corresponding to your MME:
-           (idmmeidentity, mmehost, mmerealm)
-    In table pdn, enter the record allowing an IMSI to connect to an APN
-    In table users, enter the record corresponding to your USIM card.     
-
-Running the HSS:
-yang@yang:~/openair4G/trunk/cmake_targets$ sudo tools/run_hss -g
-
-
-
-Building the MME-GW:
-yang@yang:~/openair4G/trunk/cmake_targets/tools$ ./build_epc -c -d -t -T --s6a-server
-
-Configuring the MME-GW:
-  You can configure in file openair4G/trunk/cmake_targets/tools/epc.local.enb.conf.in the following parameters:
-  MCC/MNC of your network
-  SGI interface (outgoing interface of the S/P-GW)
-  Integrity algorithms, Ciphering algorithms
-  Please note that DNS addresses are hardcoded in source code (TODO in list).
-
-Running the MME-GW:
-yang@yang:~/openair4G/trunk/cmake_targets/tools$ sudo ./run_epc -l -g  -K
-
-
-
-Building eNB:
-yang@yang:~/openair4G/trunk/cmake_targets$ ./build_oai --oaisim
-
-Configuring the eNB:
-  The default configuration file for the eNB is trunk/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.generic.oaisim.local_mme.conf
-
-Running eNB:
-yang@yang:~/openair4G/trunk/cmake_targets$ tools/run_enb_ue_virt_s1 -m /tmp -K /tmp/enb_ue_virt_s1_itti.log
-
-
-Putting some IP UL/DL traffic in the bearer:
-ping -s 1000 -m 1 192.168.12.100 -I oip1
- 
-
-################
-Tools available:
-###############
-
-1) itti_analyser (list messages exchanged between protocol layers)
-2) xforms (Layer 1)
-3) vcd (timing mesurements)
-
-
-