fix(PRU-ICSS): Broken link to XDS Performance Comparison

The doc currently references a broken link to XDS_Performance_comparison
file which doesn't exist anymore. Modify the doc to drop the reference
to this.

Signed-off-by: MD Danish Anwar <danishanwar@ti.com>

source/common/PRU-ICSS/Overview.rst

@@ -526,9 +526,7 @@ When using the XDS510 USB emulator, why does the PRU Program Counter not increme
 
 There is a known bug associated with PRU debug in the XDS510 USB class
 driver, and a different emulator should be used to debug the PRU. Two
-good alternatives are the XDS200 or the XDS560v2 emulators. Comparative
-benchmarks for various classes of XDS emulators are available at
-`XDS_Performance_comparison </index.php/XDS_Performance_comparison>`__.
+good alternatives are the XDS200 or the XDS560v2 emulators.
 
 Why are no MMRs outside the PRU subsystem visible from the PRU perspective memory browser window in CCS?
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