Applied edits to network flow handout

Advanced/Graph Algorithms/parts/05 reductions.tex

@@ -8,11 +8,7 @@ An \textit{independent set} is a set of vertices\footnotemark{} in which no two
 
 \begin{center}
 	\begin{tikzpicture}[
-		node distance = 12mm,
-		hatch/.style = {
-			pattern=north west lines,
-			pattern color=gray
-		}
+		node distance = 12mm
 	]
 		% Nodes
 		\begin{scope}[layer = nodes]
@@ -48,11 +44,7 @@ A \textit{vertex cover} is a set of vertices that includes at least one endpoint
 
 \begin{center}
 	\begin{tikzpicture}[
-		node distance = 12mm,
-		hatch/.style = {
-			pattern=north west lines,
-			pattern color=gray
-		}
+		node distance = 12mm
 	]
 		% Nodes
 		\begin{scope}[layer = nodes]