util: Delete authors lists from files in util.

Change-Id: I2a165d3130c1464a73823046e4c7b03ba0355459
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/25457
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>

util/plot_dram/PlotPowerStates.py

@@ -32,8 +32,6 @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#
-# Authors: Radhika Jagtap
 
 import matplotlib
 matplotlib.use('Agg')

util/plot_dram/dram_lat_mem_rd_plot.py

@@ -34,8 +34,6 @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#
-# Authors: Andreas Hansson
 
 try:
     import matplotlib.pyplot as plt

util/plot_dram/dram_sweep_plot.py

@@ -34,8 +34,6 @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#
-# Authors: Andreas Hansson
 
 try:
     from mpl_toolkits.mplot3d import Axes3D

util/plot_dram/lowp_dram_sweep_plot.py

@@ -34,8 +34,6 @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#
-# Authors: Radhika Jagtap
 
 import PlotPowerStates as plotter
 import argparse
@@ -148,4 +146,4 @@ def endDocText(outfile):
 
 # Call main
 if __name__ == '__main__':
-    main()
+    main()