Remove php submodule

Signed-off-by: Marc Duiker <marcduiker@users.noreply.github.com>

Author: marcduiker

.gitmodules

@@ -1,9 +1,6 @@
 [submodule "sdkdocs/python"]
 	path = sdkdocs/python
 	url = https://github.com/dapr/python-sdk.git
-[submodule "sdkdocs/php"]
-	path = sdkdocs/php
-	url = https://github.com/dapr/php-sdk.git
 [submodule "translations/docs-zh"]
 	path = translations/docs-zh
 	url = https://github.com/dapr/docs-zh.git

hugo.yaml

@@ -281,7 +281,7 @@ module:
     - source: sdkdocs/python/daprdocs/content/en/python-sdk-contributing
       target: content/contributing/sdk-contrib/
       lang: en
-    - source: sdkdocs/php/daprdocs/content/en/php-sdk-docs
+    - source: sdkdocs/php/content/en/php-sdk-docs
       target: content/developing-applications/sdks/php
       lang: en
     - source: sdkdocs/dotnet/content/en/dotnet-sdk-docs