typo in gitignore

.gitignore

@@ -85,5 +85,5 @@ local.properties
 # Typically, this file would be tracked if it contains build/dependency configurations:
 #.project
 
-.checkstlye
+.checkstyle
 .classpath

SimplePriorityQueue/.classpath

@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry kind="src" path="src"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-13">
-		<attributes>
-			<attribute name="module" value="true"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/5">
-		<attributes>
-			<attribute name="module" value="true"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="output" path="bin"/>
-</classpath>