Remove patch file which now seems to be unnecessary

PKGBUILD

@@ -7,7 +7,7 @@ pkgname=seafile
 pkgver=1.5.3
 
 #The release number for the arch package, as fixes are added to the PKGBUILD, the release number will increase
-pkgrel=2
+pkgrel=3
 
 # The description of the package, should be about 80 characters long (one line)
 pkgdesc="Seafile is an open-source Dropbox replacement."
@@ -40,18 +40,10 @@ options=
 
 install=seafile.install
 
-source=("http://seafile.googlecode.com/files/seafile-latest.tar.gz"
-	"seafile-admin.patch")
-sha256sums=('33f150bcc5fc1f71f20584f8e82999313452c1177483f60a0045c73a45332f75'
-	'0d9578b85c00f3087a19f227b29c3fda13e83d093d024c68c1df5575d30d56dc')
-
-prepare () {
-	cd "$srcdir/$pkgname-$pkgver"
-	patch -p1 -i $srcdir/seafile-admin.patch
-}
+source=("http://seafile.googlecode.com/files/seafile-latest.tar.gz")
+sha256sums=('33f150bcc5fc1f71f20584f8e82999313452c1177483f60a0045c73a45332f75')
 
 build () {
-	prepare
 	cd "$srcdir/$pkgname-$pkgver"
 	./configure --enable-server --enable-httpserver --prefix=/usr PYTHON=/usr/bin/python2
 	make -j1