README.md: Remove summary for GCC 13 as it may had already been present..

The new TP is not from fanalyzer but from normal warnings, may have been present before

Author: Eliot-Roxbergh

README.md

@@ -5,11 +5,8 @@
 _True Positive (TP)_ \
 _False Positive (FP)_
 
-Results (2025-01-27, GCC 13.3.0): \
-GCC: 3 TPs, FPs 0, (plus one very minor TP)\*
-
 Results (2022-03-22): \
-GCC:  2 TPs, FPs 0 \
+GCC -fanalyzer:  2 TPs, FPs 0 \
 Clang-tidy. TPs 14, FPs 6 (note was run with sensitive setting which may increase FPs)\* \
 Semgrep default rules. 5 TPs, FPs 11\
 CodeQL: 3 TPs, FPs 0\