Remove external/pffft/.gitmodules and submodule directories. am: 2d0d66f988 am: 74e9dacf5c am: e23fdcccfd am: 5ec369b08b am: c02f030e19

Original change: https://android-review.googlesource.com/c/platform/external/pffft/+/1830698

Change-Id: I063484cbca50aef8d27bac49df0fb386bd376d24
diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index 9ef3633..0000000
--- a/.gitmodules
+++ /dev/null
@@ -1,9 +0,0 @@
-[submodule "greenffts"]
-	path = greenffts
-	url = https://github.com/hayguen/greenffts.git
-[submodule "kissfft"]
-	path = kissfft
-	url = https://github.com/hayguen/kissfft.git
-[submodule "pocketfft"]
-	path = pocketfft
-	url = https://github.com/hayguen/pocketfft.git
diff --git a/greenffts b/greenffts
deleted file mode 160000
index 0c1fc0e..0000000
--- a/greenffts
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 0c1fc0eb4c254c256c07eaaa3b2d424bddbef864
diff --git a/kissfft b/kissfft
deleted file mode 160000
index bf9eadc..0000000
--- a/kissfft
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit bf9eadcc6ae744a4347daf4ef72c0fca44a1713d
diff --git a/pocketfft b/pocketfft
deleted file mode 160000
index 78a0254..0000000
--- a/pocketfft
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 78a0254546e3cd0e042e0216b71f7e1e79f03099