Add pywatchman and remove pyinotify as a local requirement.

requirements/edx/development.in

@@ -16,6 +16,6 @@
 click                               # Used for perf_tests utilities in modulestore
 django-debug-toolbar                # A set of panels that display debug information about the current request/response
 edx-sphinx-theme                    # Documentation theme
-pyinotify                           # More efficient checking for runserver reload trigger events
+pywatchman                          # More efficient checking for runserver reload trigger events
 sphinxcontrib-openapi[markdown]     # OpenAPI (fka Swagger) spec renderer for Sphinx
 vulture                             # Detects possible dead/unused code, used in scripts/find-dead-code.sh

requirements/edx/development.txt

@@ -231,7 +231,6 @@ pycryptodome==3.9.7       # via -r requirements/edx/testing.txt, pdfminer.six
 pycryptodomex==3.9.7      # via -r requirements/edx/testing.txt, edx-proctoring, pyjwkest
 pyflakes==2.1.1           # via -r requirements/edx/testing.txt, flake8
 pygments==2.6.1           # via -r requirements/edx/testing.txt, diff-cover, sphinx
-pyinotify==0.9.6          # via -r requirements/edx/development.in
 pyjwkest==1.4.2           # via -r requirements/edx/testing.txt, edx-drf-extensions
 pyjwt==1.5.2              # via -r requirements/edx/testing.txt, drf-jwt, edx-rest-api-client, social-auth-core
 pylint-celery==0.3        # via -r requirements/edx/testing.txt, edx-lint
@@ -262,6 +261,7 @@ python3-openid==3.1.0 ; python_version >= "3"  # via -r requirements/edx/testing
 python3-saml==1.9.0       # via -r requirements/edx/testing.txt
 pytz==2019.3              # via -r requirements/edx/testing.txt, babel, capa, celery, django, django-ses, edx-completion, edx-enterprise, edx-proctoring, edx-submissions, edx-tincan-py35, event-tracking, fs, icalendar, ora2, pandas, xblock
 pyuca==1.2                # via -r requirements/edx/testing.txt
+pywatchman==1.4.1         # via -r requirements/local.in
 pyyaml==5.3.1             # via -r requirements/edx/testing.txt, code-annotations, edx-django-release-util, edx-i18n-tools, sphinxcontrib-openapi, xblock
 radon==4.1.0              # via -r requirements/edx/testing.txt
 random2==1.0.1            # via -r requirements/edx/testing.txt