SYSTEM_REQUIREMENTS.txt points to non-existing BUILD.txt

diff --git a/solr/SYSTEM_REQUIREMENTS.txt b/solr/SYSTEM_REQUIREMENTS.txt
index f06ce37..35da7ff 100644
--- a/solr/SYSTEM_REQUIREMENTS.txt
+++ b/solr/SYSTEM_REQUIREMENTS.txt
@@ -11,6 +11,3 @@ CPU, disk and memory requirements are based on the many choices made in
implementing Solr (document size, number of documents, and number of 
hits retrieved to name a few). The benchmarks page has some information 
related to performance on particular platforms. 
-
-*To build Apache Solr from source, refer to the `BUILD.txt` file in 
-the distribution directory.*