CI: remove pcre from macOS

ff02e1561f2073b39814f2d73205a5209471b115 added a host version of pcre
for packages that need it.

Signed-off-by: Rosen Penev <[email protected]>

.github/workflows/tools.yml

@@ -49,8 +49,7 @@ jobs:
             git-extras \
             gnu-sed \
             grep \
-            make \
-            pcre
+            make
 
             echo "/bin" >> "$GITHUB_PATH"
             echo "/sbin/Library/Apple/usr/bin" >> "$GITHUB_PATH"