diff --git a/data/repos/src/hello/main.go b/data/repos/src/hello/main.go
deleted file mode 100644
index 30ffb25..0000000
--- a/data/repos/src/hello/main.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, daniel")
-}
diff --git a/data/repos/src/hello/main1.go b/data/repos/src/hello/main1.go
deleted file mode 100644
index ae3e566..0000000
--- a/data/repos/src/hello/main1.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, 世界")1
-}
diff --git a/data/repos/src/hello/main10.go b/data/repos/src/hello/main10.go
deleted file mode 100644
index ae3e566..0000000
--- a/data/repos/src/hello/main10.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, 世界")1
-}
diff --git a/data/repos/src/hello/main11.go b/data/repos/src/hello/main11.go
deleted file mode 100644
index ae3e566..0000000
--- a/data/repos/src/hello/main11.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, 世界")1
-}
diff --git a/data/repos/src/hello/main12.go b/data/repos/src/hello/main12.go
deleted file mode 100644
index ae3e566..0000000
--- a/data/repos/src/hello/main12.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, 世界")1
-}
diff --git a/data/repos/src/hello/main2.go b/data/repos/src/hello/main2.go
deleted file mode 100644
index ae3e566..0000000
--- a/data/repos/src/hello/main2.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, 世界")1
-}
diff --git a/data/repos/src/hello/main3.go b/data/repos/src/hello/main3.go
deleted file mode 100644
index ae3e566..0000000
--- a/data/repos/src/hello/main3.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, 世界")1
-}
diff --git a/data/repos/src/hello/main4.go b/data/repos/src/hello/main4.go
deleted file mode 100644
index ae3e566..0000000
--- a/data/repos/src/hello/main4.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, 世界")1
-}
diff --git a/data/repos/src/hello/main5.go b/data/repos/src/hello/main5.go
deleted file mode 100644
index ae3e566..0000000
--- a/data/repos/src/hello/main5.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, 世界")1
-}
diff --git a/data/repos/src/hello/main6.go b/data/repos/src/hello/main6.go
deleted file mode 100644
index ae3e566..0000000
--- a/data/repos/src/hello/main6.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, 世界")1
-}
diff --git a/data/repos/src/hello/main7.go b/data/repos/src/hello/main7.go
deleted file mode 100644
index ae3e566..0000000
--- a/data/repos/src/hello/main7.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, 世界")1
-}
diff --git a/data/repos/src/hello/main8.go b/data/repos/src/hello/main8.go
deleted file mode 100644
index ae3e566..0000000
--- a/data/repos/src/hello/main8.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, 世界")1
-}
diff --git a/data/repos/src/hello/main9.go b/data/repos/src/hello/main9.go
deleted file mode 100644
index 4b8553a..0000000
--- a/data/repos/src/hello/main9.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hello, 世界")
-}
diff --git a/data/repos/src/performance/main.go b/data/repos/src/performance/main.go
deleted file mode 100644
index e6d8e99..0000000
--- a/data/repos/src/performance/main.go
+++ /dev/null
@@ -1,55 +0,0 @@
-package main
-
-import (
-	"flag"
-	"fmt"
-	"time"
-)
-
-type X struct {
-	s []*int
-}
-
-func (x X) F1(n int) int {
-	if n <= 2 {
-		return n
-	}
-	return x.F1(n-1) + x.F1(n-2)
-}
-
-func (x *X) F2(n int) int {
-	if n <= 2 {
-		return n
-	}
-	return x.F2(n-1) + x.F2(n-2)
-}
-
-func F3(n int) int {
-	if n <= 2 {
-		return n
-	}
-	return F3(n-1) + F3(n-2)
-}
-
-var n = flag.Int("n", 40, "")
-
-func main() {
-	flag.Parse()
-	N := *n
-
-	x := &X{}
-	start := time.Now()
-	x.F1(N)
-	end := time.Now()
-	fmt.Printf("F1: %v\n", end.Sub(start))
-
-	start = time.Now()
-	x.F2(N)
-	end = time.Now()
-	fmt.Printf("F2: %v\n", end.Sub(start))
-
-	start = time.Now()
-	F3(N)
-	end = time.Now()
-	fmt.Printf("F3: %v\n", end.Sub(start))
-}
diff --git a/data/repos/src/time/main.exe b/data/repos/src/time/main.exe
deleted file mode 100644
index 5d1fab9..0000000
Binary files a/data/repos/src/time/main.exe and /dev/null differ
diff --git a/data/repos/src/time/time.go b/data/repos/src/time/time.go
deleted file mode 100644
index d0618fc..0000000
--- a/data/repos/src/time/time.go
+++ /dev/null
@@ -1,14 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"time"
-)
-
-func main() {
-	for i := 0; i < 5; i++ {
-		fmt.Println("Hello, 世界", i)
-
-		time.Sleep(time.Second)
-	}
-}